Document Dv11QQRzwMyMG270KbD4oK3yd

s D ? f i i j; y t ^ a t TECHNICAL OP^RATIONC REPORT -----------------0O0---- OCT/MOV/DECTafBER IMS. ? 3t :h t es no.s o . SERIES HO. 50. soiis%asESP!&Bs 'PEcamcAi q p s iu t io h s Rgpoag - ocT/no'-'/nRCTyB^ 1945, HIDES. 3=at= Page. 1. 4. 5. 6. 6. 7. 8. 8. 9. 10. 13. 13. 34. H 16. 19. 20. 21. 23. 2A. 27, 30. 32. Item Ho. C.i6 D.5 D.8 D.30 D.14 D.15 D.18 D.22 P.10 P.17 P.U P.43 P.50 P.75 P.78 P.80 P.85 P.36 F-93 P-99 Prill ?. 113 I tora i Title. Solvent Diluents for Niirocellulose Laoquere. Permanent Rods. Surfex. Permanent Vivid Creena. Chrome Yellows. Maroon Lakes. Para Beds. Blue Lakes. Lino Adhesive. Pompeian. Anti CorroBive and Anti-Pouling Paint. Matroil and Maisone. Anisunition laint. Spraying Plaster. Brewery Finishes. Bergertex. Crinkle Enanels. Finishes for Prefabricated dorses. Refrigerator & Equipment Finishes, Ball Mill Technique. Air Drying Feraitone Coach Finish, Oil Proof Machine Paints. Formulation Changes. Acknowledgement ic due to the Allowing order whose supervision the above-mantionsd investigE.ticns have teen made:- Sir .A.E .Stitson Mr.R.C- .Somerville Mr.E.D.'.vileon. 2ar,,R.L.C ircnimo. Tarnish and Development Section., paint Control Section. Dry Colour Section. Cellulose Section. (3rd; A.KBK29LAM f *'T, p t-tTJ; oa -u rc.i SUP *2 9&4 (Page 1) Series No.5o TOU'tiCT DI1PSMTG SOU KITHOCSLXJJLOSK LAC D5RT.~5 by J. -L. PD.'.MCin. (0.16). ' The following are .the details of-Solvent savings affected by elimination or pstrole^Ttjhydroc^rbpnc ana the introduction or Toluol to 'standard Lines. . t -'---ti Due to the continued restrictions on Butyl and Dthyl Sster solvents ^ t-ohols and Acetone, and aided by the fact that Toluol Ls ones again available, the following revisions nave been made to some standard best soiling Cellulose lines without impairing the reliability or solvency of t'ao solvent base and considerably increasing H output possible with a given quantity of controlled solvent. Reference. . Description. Increase is gallonage. 41'. 41 PL. 7433 L-v. 1226 L":- 1225 4B.2S PL-401 (512) , Standard Thlnners. Industrie! Film Scrap.Medium. b'otor msrr.el i/.sdium 1 M W Lovis film Scrap Solution. Industrial Enamel Med i\an Sster Gum Solution. 15it 44% 40% 20% 19% 35% 20% Him Ba 5 Oli TO (241; and (457 .1. : -ioi.;-; ' 24; 4 "4; : 5:iS 1 (4S0; i 4 is; ;2ssi : :5oi) Standard Tfainaers. OLD. vrisus. 2a 4 < * 5 1* 6 ?* 5 f* 7 f* 10 M S *? 30 rt 5. ?j 10 5? ` 100 ..B *-n =: -u (457) ' - (455 j :24) (454 j (430) (431) (432) .SU'i (240) HE-. 10 .Ti-.li 4 r r 6 10 7 zr 6 ! 40 10 ~l~7" ,'i-rr "V"'., .l T" ', ~ ` ; vi: ' i. i-i : '-r-i: . iiv, : A-; i . : Lv , -iSvt \-a X o `.3^ is........... f*a - i -5- 2 tV' 5 e 10 if: -J. !.':3.iu*v- if-ay;; a soLiii. 'Vir) . if?; o:'.;.; )Viv .*0; ; Vii*" - / *&Z" V t > 5 '. .% ( 2) OOLVEHT DIUIE'-TS ?0;{ HIT7! (Contd) L".. 1226 Motor Enamel Medium. Ht-'i. 768 40) OLD. 33|Tb. - (454) 3| " (455) 3" (430) 4" (431) {5565 13 13 " (240) 11 (339) * 100 *a*=s=r ass m L^. 1225 Motor Enamel Medium. OLD. RM.78S SoTbi (430) 7" (431) 3" (i33) 8" ( B4G) 4" (239) 11 " (534) e" (432/ 2 ,J (456) 4" (512! 10 " (442; 3 ' :434( 1 ' (443) 3- HH.768 (240) (24) (457) (432) (241) (455) (430) (431) HJJ.768 (430) (431) (240) (241) (432) (457) (456) (512) (442) 100 lbs. aaaa-..-sa ==-.- 45.29 1,07is film Scrap Solution. OLD. :i', 687 184 lbs. ; 4-c-*) 2g gls- f448 6 ' **-L ; 4' 6- 9 20j ' 4tZ i 9 '* ; 24-j i 5! `5o4'i 6" { 450 ) 94 ! 4-^3 65 i.Zb) 3a " 4" HM.S87 (457) (455) (431) (431) (24) 1241) (240) (432) !454) ICC gla. i&.ssi Hfc'. 353 4;. l : 1 iCustrial '-'namal Medium. sJ.L,U 5i ^0 D r.'.? RK. 69 i'ffiS- 258 45 ? } Series Ho.50 r:in. ic.16) NE'V. 33-g- Iba. 57" 7" 5 294 * 3" 6 4 100 Nr;, 30 lbs. 7" 5 4 26 3 8 4 10 3 100 lbs. SsatanT-ms -a:.; it . V_ 20 Iba. 9^ 4 5 '' 3 Z5 s 5; 5v. 100 )',S 5. LLs. vr : SJ.IP ___ 152906 U'ag 3) Series eo.50 SOLV uT? DILDEHTT, i\)ii NITROCELLULOSE 1ACJJER5. (Contd). PL.401 (448) (422 j (456) (38) (24) (564) (566) (240) (29) Lidustr.al Enamel 1'edium. OLD. Ilf 4 n 6 5 10 5 IE (Contd). (454) (24) (241) (240) (456) (432) NEK. 8 10 25 10 4 2 100 ======= IlMl Ester Gun Solution. Ra.258 (431) (56) (239) 50 12 19 19 100 EM.258 (431) (430) (241) IOC ======= 50 8 2 40 100 (Page 1*.) dries Mo.80. KSHHAlfi-Jtr RZD3. by J. K. HlHRACiCOCB. (D-S) Hello J?ed, ref. C3058. It has aeen known fc Homerton for sane tiir 3 that the presence of a smell amount of 7inc sulphate during the coupling of Hello Hed has the affect of brightening, the self-colour. No Inform it ion exists about the affect of other metals and a eerieo of experiments has bean carried out to clear up this point. About 20 metals; were emptoyed in orulvuiant amounts; none showed decided improvement over starrier 1, many were definitely worse. The following li3t places the colours in d ecreasing order of brightness:- Calcium; ainc; cadmium; beryllium; magneBiv*; strontium; manganese; lanthanum; antimony; cobalt; mercury; sliver; seleniixa; copper; nickel; airoonlum; lithium; barium; lead; ferrous iron; aluminium; tin- In order of tinting strength, starting with the strongest, they stood . Barium; nlctol; zinc; copoer; antimony; beryllium; . selenium; magnesium; calcium; linthanun; strontium; silver; zirconium; manganese; load; cobalt mercury; cadmium. (Strengths of colours containing ferrous iron, aluminium and tin were not estimated since their selfcolours were far too dirty to be of the slr.ghteet use) For about three months C2058 have been almost exclusively slightly paler than standard ia self-colour and a shor" series of experiments was oarried out (a) to investigate the foci or causing this and (b) to produoe a modified colour slightly deeper tlao standard of which one or two batches could be made to tint up the :tock paler matt-rial. Table I shows what alterations from normal were made and how they affected the colour. ThELf I Modified Hello Heda. , Her Ho Sector altered HesulJ ant Cc-lonr 335/; 335/66/1 5P./2 i/ea/3 Caustic da reduced 5? 3/a little paler than std run -f -ior'rs product Acid reduced 5,;. ~ std Zinc sulphate replaced Dirtier ;han by magnesium sulphate. std. 5> jj-aaphthol .replaced by equivalent of 2hydroxy-naohthole-acid Deeper than .-std. Di.rty. u./c std atd. YelJ ower thai std. Blut-r than ctd. strength = std. std. 5/ stronger than atd. SUP 95290S Ref Mo. (Page 5) Series Wo.60 TABLK I. Modified Hello Reds. (Coatd). Factor Altered. Resultant Colour. S35/S7/1 5/ f-napbthol replaced by equivalent of Bisnthol QT. 335/67/2 3ii B-naphthoi replaces by equivalent of "3"' salts. Much deeper than std. Paler thanstd. Slightly bluer than std. std. (1part of this colour * 5 parts of runof works product give 6 parte std material). Bluer thaa std. - is a result of these experiments it has been reicmmanded to production Department tirt a batch of colour based on 335/57/1 should be made, 'This botch is nos going through the works. Permanent fried 2B. (ref 05028). (a) Use of Keegan's "Soluble" 2-hydroxy naphsh >ic acid. Very careful attention has been given to the yields of colours jrejecMd from this form of 55i38?j in all cases whether the colour was Jarman. t Bet. 2B or Lithol Maroon the yield has been loser than standard, and s .ace tla colours have also os-)u weak it xs&a been decided 'not to recommend the purchase of this material. Much time has. been ipent on trying to produce a colour equal to standard from I.C.l'a 2-hydroxy-naphthoic acid and ordinary quality 2-B acid (Geigy S Although success was partially achieved in the .' aboral cry by using a mixture of SO,) 2-hydrwcy-naphthoic acid and lo/ jS-:..8phtfcci, this combination of naphthoic giving a colour tieto:~ia-lly aqua! to nt.'-nuarc C30S8 it was much harder . Further when a works hatch was made cf. the-w lines the colour was somewhat deeper than standard and han er its:: iha laboratory scnplo. In view of tbs feat thai the ordinary quality c: 23 acid i: satisfactory for use ar. C2935 f .is;rv'..aent 'led 2B, barium toi er) it has beau awidcd to drop th- Uvea rigstion <'t its u is in the crlciurc :-<x.ed. U.o patant ?, IBS,8tV> shl'd;. clulns improvements ,n the ore duel., on V ''D-mavant led 2D ay :*. . op -l vat i,i i - antes- i l.;vae-Div . .er..\=ith .;he . ci acid has >* ! nvest.gated. 1' t.s t'. a iE.8) .-ith Dnxte . ump'v ao. riag war -rhae r.1: vl " r.t. net ?. >r br-j*vn p.i ' 5 *> '"j V~ / ;7iiiS ^va.:; Ivt'.'c.U v ^ ~i d - jfiv siuat Ui tb. Gur.V'. Xtr i.i.:. -i :.r - > -ho !->i:-3e< 5. r-*. ct_?>-->-' !?'. S.- . -<03'.it; 3 ,ri ?- i'V.* V S/./P 052c>fl,9 (Pis* s) agati p.?tS9, (0.8) tssau. 301/79/2. 5* 20.0 80.0 Gelra 2,5 (38) Moths. This material "& good mwlU la that It prevented tho blooding through of the brown spots without the disadvantage of cracking troubles when ooated over with White Pompeian, The host adhesion was found when the Pompeian was applied 2 hours after the sealer. A sea?.er of this type has been fixed up under the amber V7399. TSKixijm v iv id casais. V J. K. BAKRftCLOOGH. (d .io ) Because of the shortage of Sanaa Telle* . 300 the pigment used in "Pompeian" f.axon Green has been mstohed from tlie same materials as our Vivid Green, (ref C3079). The referenoe KO.C3114 has been assigned to this "Saxon Chrome Green* which is a J Monosol Past Blue ivi lake upon Lemon Chrome 031Q3. Two parcelr have been made in the factory and were satisfactorily close to the laboratory standard. C5114 ha8 been found perfectly stable to amoving at 300F for 1 hour. If atoved at 350P for the same time the pigment begins to exhibit a slight hajsknees. aiKGj.3 TLLLOTS. by J. h, BAkRACLOl Gh. (D.li>) (a) Lemon Chrome C3IO3. Aj effort has berm mads to prepare C3103 (the chrome base for Vivid Greens) from Litharge, instead of from lead nitrate. ffkilat the reaction involved with essentially the conversion of a basic chloride to sulphabe/chromate mixed crystals appears to proceed satisfactorily the resultant ohrome when "blued" up with monsol Fast-Blue 2GS gives a product which is Very rank. However, the method would seem to warrant further investigation when possible.. (b) Primrose Chromes. The formula for S-V? Primrose Chrome 12C7L has been checked in the laboratory and ga**e the following results: - G/c Slightly cleaner than 02777, much, paler than Y36CO (or 1.0.2`s Primrose Chrome). U/'T Squnl to 02777- . : gvi!.. fe little better than C2777. Fastness. Hot quite so good as C2777, au-oh better than I.n.I's primrose ahrane. The particular feature about this chrome if. that it is coated with lead (?) silicate after striking, -hat the function i.t this coating is, is not clisar. A laboratory parcel of 02662 (Primrose Ghroraa) lias been prepared and then "Gilicafced" as in the S-*f process. The results are shown below. SUP 0`. 910 (Page ?) Series So<50, CaaOMS YJUO.VS. (Contd). (D.14) S/C Much brighter and cleaner than 02662. E/T Redder than C2662, Strength equal to 02662, Justness Tests not yet ooapiesed, (b) Mid Chromes, S~v, Mid Chrome 12150 Is coated with titanium hydrate trader TJ.O.P 2,212,917. Prepared in the laboratory it tested against C1522 as follows; - S/C Xvi^hter than C1522. E/T Redder than C1522 Strength About equal to C1522. TJ.S.P. 2,212,91? claims that pifmeata coated with titanium hydrate give Inks resistant to lithographio breakdown. A sample of Ci.1522 has been so treated and sent to P.A.T.Ti.A for investigation. MAROON UK33. by J.K.&iRRAglXPCa. (D.15.) Lithol Karoos, Calcium Toner, 02232. Foilo-iug on the last report a formula baa been devised for preparing C2232 from Xesgan's soluble 2=hydroxy~naphtho1c acid. The product prepared in tae factory was brighter than standard and n little week. A factory parcel has been made with similar results and this formula vill be employed until all Keegan'a TM357 Is used up. Lithol Maroon, Manganese Toner, (ref 02389 or ZS'VB). The S-" lit bo.' maroon, manganese toner, is richer, softer, ind mere easily dispersed than ours. The extra handling however, caused by pressing the iye and redispersing before laking is so expensive is to preclude Its employment under present conditions of labour shortage. Decantation washing has been tried but doer not bring about the same purification of the dyestuff. ilAl-OON LAgj:. by L-.M-S ware fceviar, trouble with their Maroc 1 Lake due to f adi -ig '*!'; to overcome this defect it tag ac asatad tbs ; Madder Lake a:iu-.iu not be used because of ita high aiumiae sontsnt. A sample of an aso ;aroc:fi C-D112 01 bla-sc f re, at nely tdc: j *>* offered for their commentss. .'Mb was apuare itly q-. ita a-; c sf it u cr m many respects beu.r re:-t icuu-.r iy re-cist nt t c c, ccrortVi'iol y ben , tnr teobicsy to blsed. .iuring c. .; .'.lii-. ior and . r 0 -3 ilac isssd led a-. ., explained inn tub lu' e rub:-in..-' c" oio. si.auo.s.rci C2'j 3c . Vl i.c I. r osea practically so bleeding 12 vsl tv e s c - pointed out t' t c-.e c'liie.'tctu- much yellower tnac 13., tut , e !.as foe. ui to . .r. adv.-.n :-ige as the colour desired v.a " a ye 1 in war tone- As . ray,.ft -..f bsi.a cufci-srfiori o sample was aad* etriktag C2' if ;a the praees-' e or Ui.'proxi'Bateiy 60/ bianc fixe. r"nt s ha a been :'c-~ws.v.ia under a sm. -r ,;3ii5 end their .report now - _ . . ','Fae 3) . VAHOOM kaiCSS. (JontdK Sanaa So 50, (D.X5I Fongs* 1an dr;?nsoa. Cxi ie<. It waa though-1 that owans to districted supplies of Alizarine, C932 might be in short supply far tile above shade so a substitute veto sought. The aestfed calmor can be obtained by a mixture of .p'illd and 03115 r.ith blaac fixe. It will oc bette." to have a more rsdnead version of C3U2 for this purpose ao a number C3117 has been assigned to a colour which is P.Qji Toner and SO;, blaaa fixe. The blend for substitute namely TS703 is;- 22-5 parts 03117 32 C3115 27.5 22. - TASA RSOS, by J.K.BAKHAClOUSa. {D.18) C24dl Blue shade lure. is very hard and xne attempts tc soften it have bean made. Table II will.show how this has been don and thr ro/ults achieved. TaBIT 11.__oofteniny Pars Beds.. d':: __ Softening agent a aed. .'-/59/'3. if . ' do/l. i. to/2. ic> rn.,;,,u aft'jr coupling. 103' T.R,C fj.,. by > lulus* chloride,, tft-=i in: . lO^i Rosin Boar sfr? ert;- iil iulphotvcpy .: ; y..-c " * 2--. Glycol ff''..-! ... > r : -d-'- 115.'30/3. v l" ;s o /a . dy 'V 5,1 1G; Oalsoliu-.-- 1,1; ';? 10;. Taeritl 1 1,/ iu.lpUor.ated - coupsini. ...' lied tVitsv strx.d'd..;. - Sffe tt. Spue tc st a Hard x Vt; 1 sid bed ducr d. ; *'p. lot r -- r- ; 1 I bo .- ..) d;.:u. c y.ic ; t: , ;.bou eu'.'h" 1 * _ Sd.. . iitt Sit i. ..v hllat it id c'-Yix . -.a dux, to boiling tote -t-.-yp,.'fiT ii 7 Oi.li Patch of .phCfUi1 sec loro! i;,~cd i ete y .-> t t.- U ate fart 1 d re k .it t; *;c -e -t; ' -1- ' ' ^.. ' - i .. .yet -Cl e:. d 1-. ' - ~ id i; . ' : 3V . d? .- ' x {Pag ?) Tories T9to.5c BLUE 1AZS5. {Contdj 'D22; the nearest they made tc the original dyestuff. Each has teen tested out with the folloriag results:- si' ;'o. Dyestuff. Mriiltant laid 335'93/i-. Sr 11 liaut ' t-ol Blue ?f Supre - 355/93/a. Sriiliswt "`ooi Brue 3L.3C0/- 355/94/i. Brilliant Acid f 0.5118). Cyanine SB386/., o/C more intense than aid. Ashcsr ana .Artier than Std . Cleaner and dirtier than std. Ejual to std f-ipjneut u/t. Strength. Bather dirty nsaragt to Stistd hi series. -to Extremely dirty. - Dirtier than 355/92/2. Clean but very About a;aal red. 1-.6 atd. 3S5/54/2. Brilliant ".ocl Blue BLN Saprt. ned and dirty. 7ery dirty, about atju.il to 355/93/1 , 4 large la bora, tor;.- batch of the lake frcsi Brilliant Acid Jyaaiiie C- Supra ie in hand *n.i a sawple -*111 be sent oat to the ansyiirtera under the nusahoi 73116. The lake 03118. Vro-o- a o i d Cynninp 33 '110 . his be=*sr i,,i r-.'..:-.-. :: as i .' >N. VS7 tv ^ Of .some inter.-sfc : .07'y/Vj/^ . ..,3 'J'i'V:' :.. ' " O'. as put :i-.C Oil X--> -yCM'-r-.i u , station > o1 o^.;. pa : , i.>I.' hi. 0-0 *it ' " ' ' " - ; i" X;; '. . . :r; . : r. -.195./ " " yot-iO O i; ' , ;V hi":- ; c ; .:i350 t.h 0/ CSitv,;. jp-iur-. . ''..Iter fetfi Ml-Lay. ;.i;, 030 - based on tacnii-L. -u, rosin, yatta per \t& jSs id-ies. {'il' cr '5 jii' i;!/:. {*; A*.;'. with ;:>i Geivs 3.:. [f .1950 u:>th 'Hi. ..a: t .:...; id ting. ijras-i c .t tils 'ti-'s;'.; is as To., -.ov: s: - el ' -t/Sii' ".tiit-'i- .x:iX'u.~ to f:C c i .eis >. lor is.'. i"-o 7-V To -'3 id v- ..a. ; Of M'jihv .A it ::.y : ... ;v... . 'Pf*se iQ) Series Ho. 50 LE'O -:DfS,SIrz 'Oontrd! (b) &3 'g) was. iUatsr-BS* 3is-a std :aado 1- ^3 ' ' W> S'.O .\'7 ?.;> Viasol Saa, Wo dM2?. after oeia ; for oonth, ;.,j.L with the exsaption of i.,g, azar. 2.: ourline :*c.y fc ". aac. ._re ar- tlsfurrt ory. Xt is not pr: bis tc put them i'i arr -rrrtler issrit. In order >.t j Seisrs'uis tbs' effect or vlbrufciws. .mother piece .7' sat s tuel-c dawn --.?,h BLpoo an to Via frsr;e of Uo.l Sail Biill in ;G' Dept. ao'i; . '?1m= age? a is sniisfocfcosy to-date l.e. after 1 MTtt (i-. i?) . roaya.ian r'i; gen ted D/c?g. Investigation as i : a* medium best suitable for yoiapeian Dndorooatir.op. .All medium* pigmented to the pre-war pigTtont forjvj-lation of `.;c351f Lu Sw o ees selected for tests beings- Vli7 on (>&} (Linseed oil). V-6U7 on r-Y.?8 ?5oy-'. Linseed rfood Stand Oil. SA5DTS 3A5291.. :.".e Varnish. Becoat ins -a,'hiet'ts on adhesion Adhesion Adhesion o: lime. Leso'-ting. 16 hrs W Hrs Enamel t;- after ?sh rffcer ?sfc v/ctg af'.so applied. applied. Air Dryirwr l weeks. ' Vi T- .17 hrs 16 .54 .to-- -i . >. orar.ns. - - Fil.tib ;, soft thrixv-. not sepe VOElcVoialp' so: ieivsd '10 o ,7 7,7. Vairlv v-f s os-!'a0ng througr.. f.' :s _______ ________ ________________________ ^aaS_sassA5?a.^. t .' ; J iiSOX :.y 50'lja 'Mil : `. : . ; V 1,/ soft > 0. ,6 on str-* ie " C.Jt strips easily ii"OFar . foil- .1 t . -i` soft. f. s-jparate-.:. (Page 11) 5er-.aa Ho, 50, KMP5IAN. ( fcontd). {p.l?j All U/Ctgs reooQted at rar ioua times with Pompeian "bite Finishing rtr348S. Hat ':o. Varnish. Recosting Time. Commenta on Recosting Adhesion Adhee on 16 hrs 40 hn after Fsh after Fsh applied. appll id. Adhesion of Enamel to u/ctf after Air Drying 3 weeks. 314/315 '.r3098 e hrs 16 hrs 24 bra 3)4/314 "AS072 4 bra 6 hrs 15 hrs 24 hrs Softened bad ly. Slight shrivel. - 0.K Strips easily 0.K Strips easily Just O.K Strips 0-K O.K C . Strips r\t\ `r Strips - Stript fairl; easily. Strips easily Strips local; y O.K Strip;. fairl; eaail; Strip. fairl; easil; Film very soft through not separated. Film fairly soft through not separated. Film'slightly soft* through FiInn not < separated Film O.K Fairly soft through Oifficult to separate films. Films O.K 7.G Adhesion between films. Fairly toft through. Pood adhesion .:et'?:een films Film little ooft. food eahsoior: EzvC Film - . (fags 1?) PCiPSl 5,7'=. f fcutd j. o 03 Wc-50. ' r-, V?) J i r coated at various t- iriea situ i-'orap-es.-iD hit." '' : : ,, iiUi if TiS34l!8 Tef t!o. Tara si. Becoofc-.ag Time. oo.aEfcata on jecaatirig. Adhea lor. IS hra sifter ?ph ..ppliaa. Adilaa j.on 40 iirs after Toh applied. iiuhesion or K';a:;;el to : afta1 Air Frying 2 'lOei;:?. lli. 'i:. ... o. .4 4 hr. 5 hr? 15 fere do,, e . i' 3-!.C 0-1 O.X 0,?r Ctripr Slight strip ping. O.Z Strips v 1 Very good, C.K Very good film appears larder than at 4 hours. O.K Film Fairly ' Sard. . ; 24 hra o.ii Strips Strips Film i3 still able to be removed from G/ctg. i wins to isk c-f .J.;. :-itU 1 esa^pigtaented synthetic -Titles"- recosting interval j f i.5 hcurs wist be accepted. Therefore Vv'.?)-,.3. or 72096 otre.ig':.'; :? t :c beat. The latter beiug adopted : ; ac vtant better flaw.' icvo->\:ii panels sill be prepared of the B/Cte cvi '-.. --ats-d at various iate; v-Ti.rs : liiiri < 8, 12, 24-, 46 a'-a 163 hours) .. si , .o.oeio. "bite Eneuaai to detoi'ciiss tb~ gaifinance of tha oorio. a;; (are. Tbs peav.-- 1 a-'.. :<e oxpased. Typicx . gorra. latioa. jPcapeian Tiite Guaercoo let 3Tb " Vr f ' grci :-i 43 '? 7 1:6 ' 135.2 ?, i cl f : .10 i .;j. 6 ', 12 22 &g7 ' S3 76 ;;7>i .. 1. 13 < J. ... ;iso. fcrviia&g. (Bage 13) a n t i c o t -r o u t s a n d c NTI-f o o l in g p a in t s . by G. S-. CBa BTHSS. Series No.50 On January 15th 194c:- a aeries o? -inti-fouLing pa tat syst; >a wej'e exposed at Boole- The foilo'-ing remakes apply t those? panels atill reo: i ijiiag at the end of November, previous exaaiir.atioas having besn carried out and reported at the end of March, Jane, July end September Panel ;-ib. Anti -Corrosive [2 coats}. Ant 1-Foul ,og Condi'ion at 27/11/45. (1 coat). * ' 1-8.6. 246/186/1 245/165/1 Carers 1 Rust Patches. Lit tic 'Jiti-Pauling: coat 5 eft on panel La placef-. Bed Fouling . weed end shell, particu larly on one side. Rating. 4. 246/1-36/1 301/53- Sever.-1 large patches of ruat.T oderats fouling - shell, wed end slime. Rating d. Ss.l-'c. 246/186/1 1.0. 346/183/1 t 34065 ' ' - Hosier ton ;ai;e. Surface covered by a-c3.1 blisters, several largv patch?a of rust. l.itt..-- anti-:- ouiiag coat loft. B?d fcoling - shell, elice and see eqsa:' vt -TStCu f-V';. Patrov . 3406c Larne " i V . > - as bout with Lv--. i;a:r- fu.i'- ; left ;av:.v vc :. y:.::y ? Jliv. - li, -Uni' : . *U "'aiT-ti. "~T-~:F l ' '-ah ,r-- ; cc sho-v" .- ChdV . Co in; CSSt c-fted .-..V; i:;. - ; . -.he a. 5. v-v-illy recurred. VI -1V Forr-u ie ; vcv? : ? -sis 1 ; s o lo- MATP.Gr. o'1 TtOll ;p. Of: ' 0 iv j , \r- i;Co Made: - {Pag 24) MATROIL amp ma is o k b. 301/?? 301/78/1 301/73/S !,S 31.20 3.80 0.73 47.20 13.21 0,1? 1.82 2.44 hater RU708 BM372 ffl!625 rsrfs HM324 77372 U>5) Glue 'Pri-ersaol 'Siting. Lithopcna. Soda Ash. Tarnish. otand Oil. Seplaced BK685 by >M682 Replaced Fai625 by H'.684. Series So.SO (P.43) Etar.iinine these after xakiig it was found that the mix . ontaining RH625 gave the smoothest paste the- other* being allfhtly granular in appearance. Tiie best colour was shorn by 301/78/1; 301/77 being Inc lined to he creamy and 30/78/2 faintly pink. After holding for 3 wake the sampled were attain examined. 301/7? - little Mheags, smooth piste, brushes oat satisfactorily when diluted in. the proportions of loo . rs taste to 23 .jra water. 301/78/1 little change, the pasfci being snor rigid than 301/7?, alightly granular appears e, when brushed out - is a little coarser than 301,77 and needs 31 sr-' Tat-o - to ICO grs paste for iluticu. 301/73/2 little *h&n.ye, t,ha paste being user -.x(ria than 301/ '?, gx 9-iular appearinee, when rushed out is soar-aa.' 301/78/1 e id 301/77 a. d flee ' " "}. gre v1' 100 grs pa'le for dil tion. Ahvi ulli-u by oio: ''Mr:- Pc -.' yii:.;: -a - . :. i7~- .i-.\ i A-'. ;s5: t 1 "p'. ' ' c.;r : . o ' ji-.el, .. v.r 1... ..s ; 111 u- r- 1 r-r - .; t ...'s:.i i.esr ... t: > VJi <' 7 r.`.U.' P- : av. ' ' -1 < - u clp 'e;- " . > U:c ' ir si bo c ': ' . i- i x i .... 1 > - v,v l-PO"' , . - * ;.\ ./ ..c i -v. u pv.-> d ./lee t car u. u.; 1 iu .u :; ;.L v.u.; s, i 7. 7 5/,/P 052918 f (page 15) .1 i.TJHiTioN -h o t . bv C, Series Mo.5o. 'P-.50) .-.4 the tiiae '.'>1 these teats, no a-iparant 3tu cbsrd a\' floss fees be established, so a suitable degree o ' gloss jjas produc'd which ir. c.a- o&itibR is a '.`air soia.i-rle-rs. r;i4; ' 314. S14/2Sc 34b/-.! .odium. r~loss Paraiac 16X. F-G.Ohea; rre. v:.irs fsst . 7). k : irs 4 i>r i uias. 1 sit pick rp. S.197S S<-.50?S Good Sheen. Bad pick up. i-'-i;;'7! o.1142 Fair Sheen- S'.bad pick up. DS.j.973 h .0284 Fair Sheen. V.?.;' light pic* >.p ?4 ..-Aiae 111 v.C.Shear,. ?.p.i.:i:.P pick up. U72 G.She<ai. -.-ticki;::.. ar t .. :e. , SUP 05:291 9 (Page 16) SKb.YIRG PIASTER. by Q.J.. CRABTRES. Series Ho.50 (P.75) Osing Y8S73 the 'flerculit.e* baaed material, larger scale trials ti0 carried out by liewrs. C.&.T painters. The results were very s'Viafaetory to them though a slight ripple -was atilt apparent on the jurface. large ssttp3.es> ere obtained of e repres entative range of eic-dard building plaster* end laboratory spraying teste ahovjed that all j old be sprayed satisfactorily vshea Incorporated inti a spraying pl.i.r'->r formulation provided (a; any coarse particles present were resows (b' a thin coating n*n applied and (c) the baokin; material nas e.c -a absorbent nature. v;hes thicker codts t>re applied care- has to be taken vlth ry eariakage effects sid the beat, bases are 'n this case kemihydrate i.asters of lew --ater carrying capacity. in examination ;as aside ~.f the. wail known hycrophilic aol}->ids i.a. alginate.-., guTM arable,_ starch, tettx`in, gun tragaoaath, bc-ne glue and fish nlu; to dotermine tieir effects in typiiying plaster cm.;lotions hut only the last two sere of value, and as the fish glue tried iaa lipoid and possessed the characteristic smell cf these glues it could not compare with .boa? glue fer our purpose. Tests have been fixed fox- judging the suitability of a plaster for this-work and the final aoplioeti in for a pal ant filed. / SHjSrSSvi I-IM5HS5. (r.'fS'1 by i. r. OR-HIRES Cask and Vat Linings for -in.-.end Spirits. Required. - To find a paint which was real t- taut to iram irsioo la absolute alcohol and various spirits and elites. Investigation. - Fol.iorlj g t->.a euc-tsaanful trials oith be sr cask lining? it was decided to try si Mi Jar mr.t-wleO.e for their resistance to etron,;alcohol. Straight 1`I ionic-"-* t! y ...ens < 'diSj -.-kick was tr >c aa 'he solvent i/, the osar co;.k ov.n>..i ooall ;i:;r os i icd in this cose v j a suitable materiel iscu) i lav r 5c >' :,c'. o- inside }ar-;e c or . , r vats. Straight colut-.ons . .. ;y:'iir.au l1 iituaer, i-oel mil.. r C- Bitumen, Pool S'in ?ru 1 f o'-osr. ? -Ini iftrolcus Sit. :h ax r-i idey v-ere orlo ;o (1:?S) b. .,;o.. ', . .: . ' i.. on addition o:; (uGBi -~o rr the ,! .. ; r teado-ic: >o or t.r -y.-:i .IrViii-a? in paraf finic ; c -It s >.>. liK-fi .ec o. .Gul' : . ". .. ; ..:1 ' .. ..-tf-. -.r.: t-. or V: ' :i,: .: ' o t - r .-iution;-. all oflov-.l n.; ... ,ic. ... i. . : -r.r : j . .ok.- - .:'. - o. r . : .0 !' icing ill JI ;; C . \i'J- ' 1-' " J ) 11 of .ov.-ire ..l '. .1 blom; > --e. . - i.. :.01- t* l: - . >" . 17C rtt :!' . ;. .O' tJ .r. r. . ot -1"3- .rl -: SI-IP 052920- (Page 17) 3e?*lam So. SO BREAST glHlOBSS (Ccntd). ' P.78) Beer Cask Lining*. An examination has been made aft the beer ca.rts treated Kith, our cask llnlnge. The trials were oarrled out by kind co-operation of Keaers. Trianon, Banbury and Buxton Ltd.. and after treatment each cask ms passed through the washing machi nes for a number of times approximately equal to 2 years washings under normal trade conditions. Following this they were sent out Into the - rade. They were circulated for 10 months ana then allowed to stand for Z months prior to thiB examination. ReBulte:- Type 1. - 171301 - based on euaarone resin rod CTVC. Cask has slight musty odour. The lining looks fairly gooi. Type 8. - mgpg * baaed on euaarone resin rod Balothene. Cask has very mouldy odour. The lining is breaking down. ' Type 3. - 171303 - based on come rone red. a rod distrene. Cask has sweet odour. The lining looks good. Type .4. - 71304 - based on Bltuuen. Cask has sweat odour. The lining looks good. Typaa 3 and 4 casks ware them opened up for better exam: .nation. Type 3 - Very good. Type 4 - Good, not uite so glessy as Type 3* Ji.S^ Initially -Tyne 3 stowed etrface blocn .ng as did the other pale t/pea - this has n >* . complete! di i'*1.. r-: . Ty-.-js e d 4 are being return so. to the trace, for furtfc .u 5-C coat's, 7-ypes -5 .rod & z-t tie &bo?o results are .jese' srxA L r;i H . v.p: vt< lie , la ree ossr.-amiag. thcjs -.`e?- tils ale ss of worse. 3 v ? :.1r*s. S__o_..' casks. ?e',v casks._ Prior li; .fw tlem- are fil ,ed 'rinh ii.1 ittj sodium c-arbciuto s3 st-.ion at a ieiiper. .tire of i$0oT, 'il'.ovipd ;o tt rod f.-r 12 1 care and tfc wapi-ied. . Jill:.'! . .tii con.-son eelt sol -tion et is :poret( 'S? or? 1.eo?, iilo-ga to at^'Jd. fer 12 i tors and th >r sssp'- ted. . il_f i ,?.L,-ili plain ' a:.:por; i:;rs !?, olios. vl So stand- fi sours t.Ssn esipti&u. Tcllcwir.-; tie aroyo '. 't.: thr- casks tit ;iss= ia cle .ortrstl iisvar - ror I -.s- r -.u- a. ig i ; / bines - SI-IP M52921. {Page 18) Serlea Mo,60. 3RffV3KY FIHISHB3 (Coatd), (P. 78) lining treatment lia.lif. all casks whether new or old are cried thorofi ;hly before ah-.? ia us;ally don# over warm aii-jete. for the first s [plication of the lining, a qu Jt of aha Kit :r; ril :.s n. led with a c,usrt of the appropriate Thian :rs an- poured fir a,t: 3 duisnali: into tie asak; the bus 2 is rep lac 4 and the cash rol..#a on c .nan, cwc. end r*rer end to ensurs the whole of the inside being 11 :> then placed bungtiole don-awards ov-r a draining coai-ael, the hung rtoj-wtd .-had all excess aat.irial allow-- ft to. drain out. ''hi. barrel <? n- then allowed to reaai i on the fir ining channel without > 'Xi-hzr nmtvnsnt for 1-3 hours before heiag raced to one side ;.o st v.6 And l;~y. This is done ewer a period of f days. ,'oj.lowiag this a second coat is ap uied as be:-ore only this tsar. *.--* lining is-Aterial is used neat i.e. vr.thout Thim ere. After again drying out for 5 day? fine casks ar# filled with utter, allowed to itei'.d f-.'f 2-3 usye, drained and then paaa.-jd to the ojeaning plant before ber-.g filled with beer aaft sent out into -the trace. General t;- -otasni- A, sty ca.i =. it. tm-.sii sorasti-aaaa t;>id to open ip at the ,v. r. 1 i- .'< ..-.v . 1 .- i-~ tirlitenec up again ;y the coopers the Lfn...;f In- ;? together if i w-ovicei oh lining, ms initi? lly in ycod p..: ' - T-s-Iinf r,. ,,':< ~r s' /. bis . -fra uin&e-i .'n-.i-it. .re r-iae v.tored e hendfdl of calc Ann. .-? i-itrO'i: i. vivas .thrill-. Also at ohs ir storr sis y .. f & tfeair e;ls an- rs frlar-lp Vo.-.ed ritfc water t > pror-'-.'it cis-rirt'; >ij - -pe . > :i r. ff fisc - . ia- dam vrrer ; -.'lesta in the snd Df ,= :r-:.s : bj v.r-r;.'-.r-t-.r-- dswr -.ato the sta-res tgaln *. eps fro i ;. If;::, ; - . : iiur,. SUP _fr_lS=_2_rS_ *r-2__ 2 (Page I?) Series No.50. BRSTCtf nroSHSS (Contd) . (P.78) Conclusions. - None of tto materials so fir tried *ere entirely satisfactory for continual inmersion in 100# alcohol. Jtr resistance to wines of near 25# alcohol content the following eolution is recommended - 270/06/6. % 18.5 88.0 1)8.5 21.0 Oxidised -3* Bitviwm. Bard Petroleum pj tch ex Gridley. { 308} Triobloretlylene, ' (528) Petrolearn Solvent. by O. S. CRAETBB3. (P.80) A.t the end of Ji .y patches of "hits snowcam, Bsrgertex yj990, and Kllieem Hatch SC./SS were exposed on a concrete wall flank, -hey were all exposed in 0 !inge of thicknesses varying fron thin to heavy applioations. They ; ive now been examined with the (->11^^ results. A. 1 coat applied tlinly with a soft brush. Snoweem - no choikirg. Bergertsr: - ch&3 sing .-nd erosing. Ellicem ratch (law Bergt^tex) - ao chaining. C. 1 coat applied '-ith a stiff u-->sh. Snow-om - no chalking. Bergertex - slight chalking. Ellice Hatch - no chalking. B. 2 coerce applied with a soft brush. Remorks similar to 0, but coatings look nor** olid. X). 3 coats applied with a stiff brush. The coatings in this case leak the best, here the Blight chalking of the Bargartex is insufficient to affect the solidarity of the coating and has the advantage of keeping the film a better colo ar. /is we proceed from A throurvi 3 end 3 to 0 i.e. increase the thickness of the film the appearano of each indivilual effluent paint is enhanced. Throughout the Bergartex 75990 is ;he beet colour helped no doubt hJ- the slight c.ialking, however, in the case of the thinnest ooatings this is offset ?y erosion with ocneequent showing through of the concrete banking. Comparison of 3xtg*>or Pis .propers anti Paints a3 fftniEfrs for Concrete. These exposircs have been give.' a preliminary examination after being out for ?|r months. 270/86 - HX.45&! using equal parts (5) and V62.'3 the pigmentation hair/1 as prewar x.e. on lithopone. r./&Iking badly and affcoting ahado. ;u p (Page 20) S3j5gg3S (Oontd) (P.60) 270/87 - As above bat using Zinc Oxide - Lifchopone pigmentation from Prewar RX.4701. Little change in appearance. (? 270/88 - HX. A701 pre-war using equal parts (5) and Vi293 as varnish in the emulsion. - 0.K, little change so far. 27Q/89 - SX.4-701 replacing lithopone bgr Kutile Titanium A10 - 23. - little ohange. Y5990 - Bergerbex tinted biscuit ghade. - little ahange. (7.) 303/69 - Silicon match minted biscuit shade. - film good stands abrasion bat shade affected by dirt retention. EX.5887 Conooat Light Ivory. Little change. 270/90 - Jiatroil based on Paralao 13 Emulsion using ?ino Oxide Lithopone pigmentation. - Little change. 270/100- Std Kectone on titanium oxide tinted biscuit shade. Chalking badly. 27<Vl01- Keatone using Zinc Oxide - Lithnpone pigmentation. - little change. So far tho results show the advisability of including Zinc Oxide in the pigmentation when using nisteirperB i or exterior--^orsc. 'The above results 1 .sly squally to concret- .-xud .` r-bestoscement panels and refer to 2 cent systems. A month after the above were exposed similar exposures ware asp; 8 of Sherwoods Universal "b.i.1 Tlni l;.. This .so also seen examined and shows bad failure >iue to ohairing, orach: nq and flaking. 'TSilXlL 1!>!AK1.1:1. -T ' 'C. 3-?At v.i r; iv sole s. b;- - .-I- ffc-3 most reliable are-vtu- syrt'.cSio wrick' 6 'moiics c A.5001 an alkyd modifr-vd wt :b resin riu wi -.1" fn. ~orlr is new '-c hand tv disy-wcae v .th the lt ar e-j s - ?lr Hi. '- 1 Labor, sety trials mu -shst -. h s o>-- 1 . . ft: it .--7 x ' ? 1 i i i : *; SUP 05292# 1 (Page 21) WRIMCLK aSAKKIS. t CoatA) (P-85) replacement for the fatty acid in the original formult. eaa to mda by using 3 parts wood oil to 1 part linseed oil fatty acids l.e., using the following foisrula:- 332/114A- 202 grra3 130 " 135 " 72 * 214 " 270 e.c. 570 " 751 (3fl6> (355) (81) (240) (241) HM294 oodrosin. Manufacture. Take 731, (368), 294 and (303) to 48003' and when clear add (81) inirr3 portions clearing between each addition at 46CoP. After last addition bold at 460F for houre. Vise, at 25oC = 1.05 poises. acid value 8.8 aclids - 51.07^. ' hen made into *\ black finish according tc- the fomula for 3A.S46 the result was reasonably satisfactory. further work is in band to reduce the <lo:.a of the finish tc, i noreuse hardness and determine the suseptlbility tf the material to variations in drier content and .-.toting conditions. PimraiSfl FOR PR:JFAB-.10ATKJ HuUSASh. by ' 0. S. STAS. ' (-.86) Th* Airoh ..luminiuni House. '"e now hate raceited an order from Messrs. Bluekburn Aircraft for the various finishea for this project, quantities seine sufficient for their immediate ne<| Iremants until full scale protection is commenced. The following notes briefly, outline the pos ition. iirjVB/iOl . Primer. 36841. is satisfeetary but Bluckbajas will be using oil stocks of U.P.7 for this purpose at first. This has bean tested as a v.rlmer (both air~dried overnight and stored j- hr at 320?> and found f&i.r.'.y s-it. is factory for both aeUuioeo and U.F.finishes. "oapared with ainilr tests on 06642 however, there is slight loss c-f gloss and colour ... or. one-eo-it systems r.z? -ipnliod over it. ODv'S. 102/B. Oalluloee stucco - >ur present material 4ul792 `.a sat is facto.but . i.sity needs to be increased. h'i-B,-'i.U:.Ixturriiisap.l-gl.ite -a." u'.oee - orout - 4 ,iP'54 eoasidf-red Ji.'- ti Iji, Fiat lit I finish - eraser- - B7i 05 i baaed C i 7710'.; , gate ti-ou'vife ;e-e when o o 11 > -d ovf v the /lob cei iulose aeal-*r due to soldi ton or t' .. . si lu the sealing cost ca-isii. .-loc-s to deveic 5. Tits occur.-; ' nr. foot finisf; is -in- Hioj >; force dried n. i is o -r-2-e.itx; d: t e high syioie convent ./' Bli'jb. 0721v flr:;n u, c foV '-.a v il i'j to /ii/3 bove-; SUP r 4 i frage 22) ievin-j g~HI'.;H3g> Kf. , .:i; U.-.T -'-j HCUSS-'S (Oo:td} (i-.5c i, i.his a~"sct a) d also passas- the /104 specif iccsica, ai , .oat os-ini "^-fc ~lrt tniar sent t-> i'easra. Bracki-ura for both purposes. rx( .nented cell a 1 os.:-<::>i-u:-. '?or ?las.-i.sr and sMoreboard i s is repci -sc . .v J'j L r. -- I 'iC ;>.Vi J . pave .nigh or ooa, : c; id, .;fc,-,rvap k:' -r ' floss ?ir..- rail cU.iaoO, ci b u b or U.i? bcsia -.11 m.-t Blue .-churns Jepiirsrinic -prb/iC-;; - .`;re/ "ood Brlmor. - 5vGOd is .v-.'-tisfactiry but will ~ot bs X'c'' `ii re-... yet since all v<o id'-orit is rrt present roachiii- steasra. 3la alburn irsady >.r i;pec. 30;!3/ j.c-~. bad irioa.t Cox- -oodyoi-ic. 37213 was considered satisfactory ictii fs-'ce dri ad and air Pried, dee remarks under /104. 3 3i? 3/109. Qlosay enmBl for woodwork. B72o? - cream is satisfactory. B72C8 Green however shows considerable flotation and plcaontation is being reformulated t.) take care of this defect. Initially all finishes will be air-dried with exception . I :,j5r;/lC-; finish, and certain parts coated -ith l!.K7 which il: be forced dried far 4, -.hr at '.kuaF- fhi f olio-;, i nf, points, have also bee a covered:-. (a) ; 'Hite 3topper for nail-holes in interior woodwork. JH278 ia he inn sent 'or this purpose. (h) It is recars. Blackburn's intention to use the same thinner for lol, 104, -.08 and 109 fini.sns a, The drying speed of /104 and /_.03 finishes cas checked using white spirit and it was found that though the ini tial set up was 3ioyer compared rith that obtained. using (582). lardnees etc., after 2 hours air-drying was identical. "bite spirit can therefore be used astthinnar for all these finishes with the exception of /10I primer for rhich 77:531 will be required - jtoving i'lxusboa for K. 3 Cast Iron Jhasdia. B6.i34 red oxide primer to Go.2251 and 86897 Black namel to .77.227:8 are now being made in bulk for the purpose of filling a customer's,dip tank. Bxiopt for a -viscosity increase on storage in the containers the black saani baa proved satisfactory. A portion of the first leiivery of B634 iioiwv r showed signs of gelation. This was considered to be due in pert to excessive cooking of the medium 77365 and lr nil fur .her hatchet of tills vehicle port of the (37) is being replaced by f2., Stability tests on all batches of primer made (thinned to 25 sues f.0.41 using the rotating wheel method have given satisfactory cesults and tb>> portions tested nave shown no signs of gelation on storage. Stored films of such samples hsve also been generally 'ibt.' 7*C't.OPV 7 S/./P V V f-t {Page 23) Seiiee Ko,50 FIHI Hi-J FU;'. l-l<KgAB!sIOATKO HOUttSa Jontd) (p,,86). It appears therefore that the rotating wheel teat does not give a measure of package stability, thourh it may be a suitable means of as; easing the tank stability of the thinned asterial. Package stability teats are in hand v.lth tie object of improving 36934 in this re.-.peet by the adding of various solvents and other materials. sg:uo',u.n,o:i & l j u ip : -i' f in i by D. E. .Ta W. (p. 91 j . Ks?.TLA^rrrs. 3A.53G7 a castor and linseed oil modified allcyd. was formulated a3 a plasticising reain for use in conjunction with0-F resins. Before comn'oeing large scale production, tae following variations were investigated to determine the safety factor of the forauia:- 315/29S/I- Lab make to atd formula and method. A .101 gras (197) l 40.5 " 731 ( 209 B ( 267 ( 130 360 e.c. (368) 731 (365) (240) Manufacture Take A to 40 JF and hold till clear. Add B and nise all to 575P in 3 hours. Hold 'or almost brittle bead. 315/299/2. dingle stage cook at 450?, replacing total oils by equivalent of castor mono glycerides (Addin- 3 to a ). 315/301/1. Single stage cook at 450B* replacing total oils by 1 part castor mono glycerides plus 2 parts linseed mono g-.yceridea, -5If-.308/1. As 295/2 but adding to B As 302/1 but cooking at $00*. 3--.5/304/i-" Aid figures adding ' 157,1 only at second at. .go. SOOoy. held at Conmen oa iaboratory batchea. dodo;imp trved y to-iucing soakin' temsremtuie fi'tm c''5: ? U- i>-;vT. though a cortai n amount of hirdnees was saen'icea by fcbi?, f.; terat.ion. The differences bi.t.er V;,\i te Eempia. tites- made on t.ue.--o i=arc not very jdn'i . "0.' iritis, .Ks.-s following pots s-uiis naste :;d_ip_Lc. 7 Ini'' As 31S//4/i X-t d 1 6 -'vci/i , As. AiD />,;3/ but ro d icing {; by 9*\ si. i p ' ;(PaBe 2k) Series ?jo.50. Rjg^dBtftTOR ft SQTEasSWT flftlSEES. (oontd) -w ' 1 D . 3>. 3TAR. t P. 91) Cool'IBS times were considerably looker vhun the laboratory batches In the 1 trst two cases'! Pot on, slip Jio.8331 however gave the standard nscool ty after holding f hour at Sco0?- Cqnroents oa r-arle trials; The colour of tie'4SA5307 made 'on D.C.O was markedly better than the other*, but when alilwere made into ".`bite Keraplestite 3A3438 li ttle di iterp^e s in atay/ljbtir .^hei^jaf^iertiee was , no ted. Conclusions. . ..--I.,. The processing lemperaturs of 3A. 5307 could he reduced frdm'575i? to SCO? if ts coOk -ims'sufficiently prolonged. By this means a paler meiium could lip, made without any noticeable reduction in hardness and'lag oet resiAtaupd of the finished entensi. Dehydrated castor oil givps * similar,.-'pault at a-reduced cooking time. The'safety factor of the standard formula hae been proved to be high and manufacture should therefore be free from appreciable batch to batch variations.. ; .B*ld. MilX TEGHNIsOKT ;-v by - ' "O. g., CRABTOgS. . {?.99) ' A betcb-pf^tHt..3)i21to the new ball mill formulation was run for SO hours In place of "the 17 houre found satisfactory. This darkened the shed* but neglecting this a thinned sartple was submitted for test. The.flnesMfiMia^iMgDrded a9 being satisfactory without centrifuging but after tintlng in. the works this r&s not so ana the batch ^ . .... Qreen Pompeian RXatSjL*"' ' ~ ' v Two hatchif oaf HX.3433 Qreen Pompaiaa were run for comparison in tha. IQO'^allon steal mills 1. Boded.ph C8#?2 '-,:S6># Creett on barytas. Paste ohafge.' ` t"'; '75 gallon batch- C249S 109 lba. CIS22' ' 84 lbs. C1686 ..... 10$ lbs. .v:,.:/v,;v'r;,'... .>* HKE2 ',r' '.''"I: 61 lbs. !,118)-\. A." :'1 -7 14 gins. TQ6; 1 gin. 7 22 ' - 4^ gins. as&v hfeaWKv^irihiiiwiin satisfactory. VtS- ' A'WoW after 2 hoars. after 20 houra. r>- '.Hv jjRJlfJV'P*?''' SUP &5292S Tlunniiuss (page 25) Ba l l KILL TKHm.gJ2.(dentd; by a. d. oHAarasK. 87;. <::las. iS gins- 1'e gins . a 3ias. (US) (45) TO906 V4031. Based on YSSod - pure green. Paste charge. i~366':.' Olis-B cidse yx*:?,? 75 gin batch. 51 lbs. 34 lbs. io lbs. 3 lbs. 84 lbs. \L ViiVftf- 12 glnt.. w5 Series No<.50 'i'.95' Hu e f.-r }" ho.irs -- finansse st. tisfactory TV. 7'- after 8 hrs. L6h;- - 'Tier 17 hra. HUEEiiWS ; ' ! 4c * V.}r?'-r vd,. 79 glnt-. li " IlL- " - It v.'il L - f.:e> v. : , zr.. ? iiJ > 222" -5.\V IL-.:'. using the Y3S5S. > : 'tj.3 `i-ici \'ip wt the e i.a ths fiaersess Du'O ',ha : x"i Y:;" hue .M i.vr 3>c -ori/psian. 34C4 Baie.-'i ' . il ;l -! ' - -e-.s- r.;ad~ Y' ; . '.? <L OiP ' i :r tiu.; paste ':-nu- ur. .o 3. . ;/,/p 052929 {Page 26) B.OL MILL TaSHNiqjB (Cental. Series No.50 {P.99) Baaed on V73S?, this nao a varnish tniuia up conteining all the (I'.S) end (45) together uaad in Black Pompeian, and ms done to obviate an old trouble of tittinere in this faint.. Pa3te charge. SMlSi 36 lbs V733'" 34 el V390o 6 els an (y hr3 i'xnesses i;ood. vr, :j| 3 - si; 2 fare. i-.-O1' at 20 hours v^>97 i, V. 7/,/P (Page 27) Series No.50. AIR DKHHS ! Cl '-ITC1:'K COACH .73gISH. toy D. .3. STAR, (P. Ill) T:ie prewar medium for this finish was a blend of SA.SCc? and SA.509C. The formex1 contains & proportion of BaXelite XRB25iiand tffocd Oil, both at present in short supply.- The use of alkyd media, free from these ingredients was therefore investigated. Media, examined. Sn.5317. 55fi> oil length. 3A.5325. 317/290. Department. Ac. nlkyd modified with linseed oil fatty acids, a blend of equal ports of Porolaas 11 and 13. An alkyd medium formulated by the Research Paralac 15. Straight. Prewar Kendtone medium was also used as a control.. Comments on enamels made on above media. I-i all oases dipentine was incorporated in the enamels, sinoe this wa3 proved to be the most suitable agent for promoting easy brushing and prevention of skinning. y.p^mwl^ oa. S.,5317. Ttiese brushed fairly well and initial drying was goo-i. Pinal hardness was also good though through hardening was rrthcr prolonged due to tendency to skin drying. 3.15335-- Similar to 'll.5317 but drying was generally somewhat slower. ? Bettr.r through drying. 317/290 (As white only). than 3a 5317. dlow drying and colour poorer P.Ai-alac 15 straight. Slower than 3A.5335. Prewar Kamitone.(SA.5Q89 plus 5A.5090.) (As black only). Superior to o-.her enamels as regards rate of through hardeninr and brushing properties. I- was considered that 3A.5317 required further modification, particularly to improve through drying speed. Modification of 3.- 5090._ This is an alkyd modified with linseed oil fatty acids havinr sn oil length of 62^. The following modifications were made:- a* *3 /unR r..,^ f. -r* ' A ' .-.A. ^ `-.UP (I-age 2P.} Series No.60. ' ii'R 3r ?in g Kaa?o?n; cogs riNiar uontd) (o.ni) 515/306/1. '-Japlucos'.ent of 10/1 ->f fatty acid by wood oil 1 're cook. 3X5-/307/1. botilud stand oil. ^placement of I0,J .if fatty acid by Y42ol low ,,.r.- 315/603/1. ill fatty acid and glycerine .- epiaesd by a>-v.oslycarj.S-s& 315/3li/-. ns 105-''. but otard >il add in two stages, toaneat s on is moratory batches. riie media'll on Xioreea 2nc-:*.lycc'.'ts ms lew in viscosity .r-'i aid not dry. The viscosities of 505/1, 307/1 and 311/1 vers between 23 30 poises, that of 3C3/1 rein.? 1?. poises. . 306/1 ?.ss siir-.; ally a parlor ag regards initial drying, but ..1 were equally Siard frorri-tht. . ra It furUser *ork i* re,;.:.'rted -iy Ir. Stevens using 3A.5291, which fcc .0.5/ -C 7/1 .c k bigiifc ,.;:oAcn nmMi. fr.in) C. Ji, .dill!.: CO.it.ii'ed: Ison of lUtyc . si Hit.'.-, ha i-cx' dn:-. .,- ho?-': iliyc? fo tare of ir --0:y .' ' ' on j to be as ' o.c pz e-tv&.r ? O'-ino to a;/.V of IvOoliie 7: 51- l. . 5-. /: :' t.:-., 5072 3." 5517 t;.5575 ' _ > V-. . ^ / ,r> ; : m-ci il.'J: .J. * -'i. &. 6:';. , j .insight ...li acsd Uy5 . ir-.a ce<i .1., yd on 0.1 (11' ' b ' - 0 ?sl 2uc 13 .nrl 11. :'.:v '.iC-. : ':i- . . : .co - ".lit 1 1-ia ' a 5Vvr:.. : nacic.l Ve.rr ise i\: ' Gciisr.l J r;-`. it tsf .. . " \a* Li i.-m' ''. i-yd  (Bage 29) .lerles TJo.ftQ. AIR DRYING KSKITOti'v C0AGH (gpntd) (P.1U) All mediums piezaented as for Air Drying Semitone. nf ::o. h'edium. Colour. Brushing. Drying. Drying. 4 hrs. 8 bra. Drying 24 hours- 332/70/1 3A5317 'Vhite. Initial brushlag O.K Slight Rebrush 5 mine pulls Surface a little.Little ropey Taok. Y.Slight Surface clam. Oood dots and Olosa Fairly hard. Blooms over 3 days. SA7863 ^5072 SAKPLE 1 PAR 11} PAR 15} " hite. Initial brushing O.K.Hebrush slightly bettor. Light Stone. initial brushing C.K. Rebrush. Fairly gooif \ I'ore tacky than 332/70/1 Still tacky Good flow and gloss. Dame surface tack. Si.bloom 3 days. Surface dry some clam. Very slight surface olaaa. Good flow and gloss. Good hardness. Bloom 3 days. SA1PLE II PAR 15 W52 SA5089) SA5090) 333/55/1 SA5325 Light Stone. laitiol brushing O.K. Rebrush-' Very good. Slight surface tack. Fair surface tack. Good Flow and Gloss, ai surface tack. Slack Black Initial brushing OX. Re'onishVery good. Initial brushing O.K. Hhbrustdng not quits as free. Surface dry. Y. alight clam. Hard Dry Good Flow and No clam Gloss. Hard. Ho clam. Slight surfaco clam. Very slight surface data- Good Flow. F.G.build. Little softer through. Blooms 3 'lays. 333/76/1 SA5317 Black Initial brushing OX Re crushing Fairly Good. Surface dry. V. Slight Slam. Fairly Sard Xy. Good flow. F.G.build. Good Hardness. 331/316 SA5291 ' .'"hite Initial br ushing O.K. Robrasbi.xg Very good. Surface dry. j'o clnm. lard Iry, Good Flow and Gloss. Hard Ho clam. B1o o s 3 3 days. Pros- -hose test.- ' A.f>"91 -.ah ecnaidazed to be tne n arset -pprouch to tha pro-ttsr quality of - \~yii;.; her ito7i.r;. 'i.-r vcm Jorsorteu i- ttriheied to humid conditions '. .A -sss not o'--: on saasp. -p-t vit'ts. {Page 30) /ill) D'iYItW Z'-'.'TKBKi 03 CM, TKl'g (COW'D) Series :;o.5Q {P.111J Typical Foraulatlon. nlr Drying KoaltOM based on SA3W1. bite - Her 314/316. 88 gras 45 " *.'.713 HH61S 270 oas. 2.7 " 5-k " 32 " 32 % SA5291 V3906 74031 m (23) Visa. ICO b o o b. - brushingtf.F.G. 12 lbs. o il p r o o f ^xams f a j o t s . by C. Sg&TSBS. (P.U3) Petrol Resistance, Lubricating Oi 1 and Qutti-ig Oil resistance tests conducted on ,.lr Drying Xerdtone (mflu.iei A,3291V Elastic (Hose mints Oil Proof fechine nint cellule*# J'j.ohine Finish. Films allowed to air dry 3 days nrd 7 days before being subjected to teste. fetrol assistance Teat. Immersed in petrol for i-7 hours. Finish. Medium. A.D.3 deye. a .3. 7 days. Syn.Green Sul. SAS281 Patrol O.X. Petrol c.JC. Syn.Brown gnl. 5yn. lute ;inl. r;yn.3lE.oic sni. Elastic Gloss. Blue \fS024 Fine coski; nr. G.X Oil i-roof : achine Feint L'.laci;. F6S77 Cellulose '.'bite G Fairly Gooc.. O.X O.K Catting Oil, OIL H^OCf MP PAIMTS. (Coatd) Sirtoe, So.50. (Pi 115) Tents- 18 hours lnanersioa- A.D.3 days. ' 7 days. Sya. Groen Snares 1. SA5291. Gored ate reinoval of Film. Complete removal of Film. Syn. Brown Enamel. tt ft tt 3yn. '''hlte Shamel. n Sya. Black Enamel. n n- n n Softened up. Film removeble. Elastic Gloss Eol. 73024 Ld s b of gloss film softened. Los*; or gloss. nils softened. Oil Proof Mechanic 75977 Paint Black. - LOSS of sh softened. Loss of sheen softenei Cellulose. C-.K Q.X ijBsaersion. Lubricating Oil Tests are O.E in every cs is. Devslogseht of a Glossy Oil Proof Baofrins Paint. 7 days Mediums 'Selected Ti-Oio 'r5407 n:-iod Cil.type Vanish. Sceodiitjst. Pigsaoted with Carbon Black. Seated against- pestle Oloas Paint for re: slste.noe to PetrolE Id; r leafing. 'ill nnd (Je.ijtiag Oil. Test*. Air Dry 3 days.- Petrol lubricating Oil- Cat tics Cil. Bef So. .'i ~'3 hrs. 7 dfe-ys . immersion. IS hrs inssef-sie.-.i 345/10 O.K 0-K Filf.? is .vssr- vr hot not -ieV-;. AS * Ory 7 days. Petrol. Lubricating Cutrir.y Oil. o*z r Gloss rot ainc-i. 5'iirt partly, raicov sa. 55/io/l Complete lass of Gic-sa* Elastic Gloao Blrs. C.K O.K Fils sticry b-'t i.*. rt Los-* ai `'E-C '-Vy Loss of ^.Io3 sox' colour r.-.i. ' O.L cibr: little :::~ vsv.; . slight ritvl lie>. .. oftrrsi (Pegs 32) OIL PROOF t.ACHIRB PAINTS (Contd) Sari-- So.50 :p .ij s ) . From these tests It would appear that the beat nil round medium for Glossy Oil Proof Machine taint is 74046 as used prewar in "OFMF". Typical Formulation 'P.G. Vise. Blaak - Ref No. 345/10. 54 grma iK161 880 ocs. 1.25 " 1.25 " V4046 74021 74033 O4 lb. Brushing^ ffOia'ULATION CHANGES. by R. 0. TOt-'KRTILLg. Item 3. Rx5Q0 Motaprym. Figures row read:- 350 lbs. 175 126 8 26 184 42 gls. 75929 35 " (83} ;P0 ' 13j Its. ' 7. ICO gls- RX279- Promeua Primer. Formula revised as follows in order to produot- sierxw-ro shad follo-f-ing introduction of Sine Chrome ia place of Orange Chrome. 580 lbs ;rV3 12 94 ii.1/ i~i.O 0'>- J-v; vliSi '' >] (Page 33) ITOiMOlATIOH CHA.NGB3 (Contd) Sanaa K0.60 (Item Z). Due to Hansa Yellow shortage they have both aeon established on C3114 (lead ChrcTae/.'.'onosol alue laiie) and C3079 which is of similar composition. Kxpcsnares to date show thl3 to be a good pigment for light fastness. 8x3477 150 lba 20 150 C3114 27 35 riz347 3 150 Iba 20 .150 03079 7 33 59 gis Wj 12 4 ! (113) (89) (45) 5906 V4031 ,j C gif). ll\ lbs. 59 ;-?la Wg 12 ' 4 '118) (39) (45) 73906 74031. Y. 100 gi. 7.P.G. 134 Iba. Vat roil 4 I'aisone. Due to llthopoae sl-ortsge trls-. batches were nude using. Zinc. Oxide as e. substitute. Technical Service "spurt advising on the trashing properties and it bar-: been dooided to revert to lithopone in tha ct.ss of jsatroil and tc cut production'accordingly. Vr Is o g c is being as- ;eecad si t/, oa Zinc Os ids. : ".f Ho. s: r.o \.5~0 1T333 -.-a Eeccripticii. frOmTATIOM OW.RC-23. by a. ei/..I. il.r :ct^_ f -m V.' eynt_ y/ic Itoat leei at tag "Vaxulah lii-i U fcy Hapia. e Bee' Se-CEO. ; 1 -1 -v " Ss,c 2 :.-l' SU iriuJil ynruleh - otJi .''vor.'.:-.snsi Eimpliiy Ijii.iillU't Jf'j -edre; .HI: S') 1/ lb. : " ' -V la-. .1 5EM107 fram 10 Iba to 1 lbs. isore&se HV3-57 free 30 IbB t 35 lbs. Bcpia;. 3 0 gs .. ;X (22S i by 8 gal' s '2A) ;. iffirk foms.'s "-to-? Flftsfe". gll'/ '. Polishing avoid . ' of Syoa -i.7' 0 llab!.].'.':; 7". colour cViang .;a ato'-tge. S'c?,'-:cu a :,o.' laf-ds: * out 3V;1 - lb- .y 35 it. Me a-wftp J'vl'iJ. l;, It- 31? V: '. 0 0?-` : 500 24" SC, :. r,.'usie Tiolot. 93 ec; (58; 1 gl '.'ater. 'Cr5 vb;>' (Page 3U-) mamsim (Gwtd i, 'jg-SCgigfcioa,. g>jocfe. x "!slish 'f/.-jpi'OTo colour, r* '- ...'' j boK irr,Simplify a./. - vanjb^r- ! .. 'a :';r 1, ' acjd ?:ri.iue nor irrprsrrs : >lo . Ceriea No.50. Rap ace J81._92 ay HM91-, 3b bo i;e; bachto^jjata I;-.. 3r Sir <37 Si " \ 13) T Sf Sis. '. .a- 'j* lbs, add 20 ibo !b3;. aov- avails ;Je b`o osrr-=". 'JV ..'to. tb.: .r.'i a:-., ivvT-;', bo prewar *'t:i 5:u.,.a , avoid wr. . . orb . btpvS r:;-i . \ i o }.A: , . opt i f. ;.3S. 1 -iS-i-i; bssruser : ,.57 : fios? ivsilafc , vv . ro i.t be a >. s'ueed '. Lorn; 'sips' t issocbict al vvcp-'--Is*. :: \ntzT- : 'yir. Sep. see KetAyi Acetase by < 45? j Kathy1 Triple Solvaat. ' ; Rap. ace by 1 gall i 1?6} 5" {558) Idd 10 lbs 0- D.T to SCO ir3 be.iJb. o?P rot 10 galls (44?; sad 5J sails (434) ay lo(; galls .457). ibl 10 lba i.D.T' to S'.Ti lb;. I ..:.. ibi-ita lr---"is- : :i.r- b.r.ltf; iaac.'; rob: rot Ob; r r r:.v ; r*- s so i- ' irsv SUP *1295$ lief No. 4442 T-?247 345391. 5079 C134 -4C ili.1206 5459 (Page 35) Striae No.50 POHf-ttLATIQN CBAHP8S. (Contd)- (Z.50} Description. Object. Altaretion. ?er abine. Easier banilling. Vie'_ lace Solid Lead iSa-* atnene se by 74C33. #o? aula new reads 5f galls 4053 JSC (18) * T40S1 1 89 galls. l>*o v'araiah to 3 z 17. Exposure test une&ti afaetory. Please sjar-ic formula n0e ae ailed". Special Varni3b for General Purpose Decorative >Vork. Improve quality. Rei lace (45} by Y4S01. Ine c-eaee i 13) 'from 50 gaiIs to 60 galls. T. 120 palls. Solids "Bery^-ath. " Improve quality. Seri 34.1206... pals Terebine. : .utility. Sen! 444.1. 'VM te Transparent Soap .Telly. dorr-action of Rf So. Replace (*.5) by (608) Coacb Varnish. Avoids snaking V6S86. Bep -nee * - galls. VSl by j| gall 3 74&51. Posia/Cwo Mixing Tan tab. ?fe>te new asscrij tier.. Kot s rsvii-ied fotBSi.vi.a. 18 , ;.o b .-'.r? 1 ) "c5 4 ! gall'5s . si) ' IP ".edveea Linseed G.'V.O Stand Oil. Preur quality. v.::- asp..s:!rs-uate .la-?>.leu. liwfss.lly u-Jnr Nos * Vi . . ; > t: :3 s.iu. t O f srSUl l-';;;: ) ,=' ..sio..: - i idr : lr- it)-oj. . 3/ s- "a: -: Lis r; i 4ys;eg. ?- Hef No. V4794 74038 -. (Page 36) (Series No.So.) POiUL.,TIOK CHnIIGSS (Contd). (Z.50). Description. Object. Alteration. Short Oil Mixing Varnish. Revert to prewar Formula. Repiaoe (82) l*y (81) and note new description. Finest Velvet Plat Vsh. Avoid use of 4 varnish s b . Revise to 150 Iba i?4414 26 galls 73024. ! j SUP 052940