Document nkZLer5R9KR05G0EJw5jXgrdX

IRI I Ezposares - K|nStflH erfetegl Lead < ......... "-nitim Sg^.StatTOt On done 28 Mra K- V. Pasig ad the .miter ini the penal aspsaares of the TitaninsrPlpwnt-Cos jKicm ad the 1 Lead Gmpm& at SsyvHe, Long Island* lew lode, on Jon* if the panel______s_a_d na heat taste of the da Peat Pigamt **$Sg. DaLaaiam, Dae to the terrific hast high taddlty oar inej sasHy mm very restricted sad Only sitM-notes-wheel mad Most of the general statemmts in ear 19SL Inspection report still hold and need not he repeated here. SappLeamteiy -remarks- -esald isd&des lo TPC reported that soae mtfaaoy-oxide eoold increase the ritmtv resist-, anoe of their.so-called *non-chailag* rattle TiO^ Titsaex HAHC We : did not:. see these panels* 2o da Pont stated that alkaline aavinmaant favored rntile yelleeiag and thus calcium carbonate mast he meed in ttiites with care* Tlmy said erm knatase Ti-Par HP cm he made to yellow* TPC said Titmox BCHT cm show yellowing tat less than Titaaox BA 10 MO. So da Pont is promoting their lee sine oxide - calcium carbonate paints for hoth! whites and tints am more actively then in pzveisas years. 4* Basie Silicate White Lead 45 1 seme to he satisfactory as a reacti-re lead;pipunt* So Lead-sine free stain-resistant .paints esnttime to receive a lot of attmtion*. Rtanlaa fmmt Corporattan - Ssrrilleo gewleifc White Benias'Paints . ; Eapow* I9 This series consists of a group of paints selected ty TPC and S- fer cooperative exposore to foiler the -very informative cooperative series osaelmded in 19500 The am series sere exposed in Jane* 1951 at Ssyville ky TPC and in Chicago and Misad ty S4f. Since this series is handled hf special reports no details need he given here*. All the white paints are in good condition at aU locations after one year* exeept that at Seville the lead containing whites with 82/18 Titanox VTitanox BMC and 50/50 Titaaox A/titanox BCHT are slightly grey on the netthj, with same mildew* The S- hoff and grey tint controls shev somewhat nor fading than is desirable? N12517 0007-SWP-000006749 <'A.:-7rs.- .gr f- -" -2- Cb) ' White House Psista-C 08 08?. lapsed February, 1952. Shis aeries eovera ceapaiiesBs.ef the KJ% mtLIe titanisB-eeleitm fdgamt ELtflaox SESf md the mr 50% pigment SUfcsaox C 50. Obviously, th ' . apeaurti* had not jmaiip'esssd far ani^gh in S^fUX to sfe it mv&s mfeii# to discussi decile.. lowefer, it is wprtfc noting that the Florida .set has started to ehallf and1 m fair G 50 is chalking less than OTS. f e) IS50 Commercial White. Baas Paints. loosed Jtae, 1950. Shis series tadlndes .* mashes' of nationeUy distributed bouse faints .as well' asstandard -type paints each as lead-in-oil, 60/S3/L0 uSiL/ sine oxide/esteador, 50/50 titanium aagaesim^leaded' sine, and-15.8/13*7/ BSa$/17 fitinox i/Ethanox M/ieadad sdne/xteader. fte lesd>in=eil has clesasd up fairly :usll m the- south tat th north'peaeL:is gray. Th 50/SO/LO .paint is fairly dean on the south hut is stewing-spsttr eLeah-up cm th sortfeo 'ESi otfeer too pattern females perform-like the commercial' lti=pan.t paints. ' Jaoag the eoamereisl paints S- 471 Gloss White shows a tendency to crack' along the edge of th bevel siding-. It was chalking at the same rate as Low Brothers' High Standard. 528 White on the south.bet us a trifle whiter end chalking a trifle faster than.the 528 Mbit sn the north. Bevoe's 54f ibite bad ah obviously gs^g east on the.south and.was definitely gny on th ,serthi::r >:PSttewm-Sargeat #218 was also definitely gray in: .east. It is kams, that they use Si&aaex M, which is too chalk resistant for-a whites Ho roeeisl notes wre made' on Hational Lead, du Pont, Ward, Sears, or Benjamin Mocjre. : (d) 1948 CgamerelEl White House Paints. Exposed June, 1948. . 2 series smaenhat similar to (e), now 4 years old. 2s noted in previous reports, SEP is shoeing a fine checking pattern on the south hut is OJE. on the north. Lead-in-oil (5 coats as in ease of all but the one coat house.paints) is almost tiam to bars wood on the south, with little paint left va on the norter Pittsburgh's, 1-54 White looks ''-very sice on 'the^sw^; while Xa^iohal,Lead's 10 and 110 Whites look good both south and norths Igadn, Bcmoe's 547 White looks grey on the north and their One Coat Bouse Paint (otwr SPC's zincless primer) is cheeking on the south and looks grey and is mUdewed on the north. In another series put out in June, 1950, one coat over primer, the B@vea plgaaatation of 8.52 H.Og/67.5% titanium caleina/2^1 zinc oxide looks grey On th north. 2 related composition of 8.5% T102/61oS titanium magneslum/50.2% zinc oxide looks better. 0007-SWP-000006750  tS99' Ij ) 2949 mtc lease faints. Expose Jammy, .1949, ' the first group is this test smrsims 20$ titanim oxide, 55% leaded. slae, 15% BCHL sod 50% mgaeeltm sUieste, Sh second group is efcdlsr but the 15% ^CSL: is aliaiaated aad the'leaded sno tECWfifiged' t"53%, fhea tbs fiOs is-sll an&tase SLtaaez 1 the psista stsgr Ait tat tend toward fine check- log sad emdkiitg m tbs Math, If the 23% of TiQs is divided csasily betwim & md E^e tte;e doEElsilitr is i^awd tat ehsIMag'i'retarded to sack rad the. pSai becoasB grsf mi sdldews, la general, the tenures! of BS2L sad in- . siwssei sisse dees*eee dirt ell.sc.sao Cf) 1948 tettS.BaBss: Baintsa Exposed June, 1948, 1 The- original pi^gEt&Um of 5D% Titaaoz Effif/50% leaded- sbro eai- looted too Maeh dirt, tab dLeatt-p iaprovsd ty tbs use of'5$ Sliaax 1, Mi, the pigsssatetion g .rerlsed to 50$ SSkaaoz BGUT/40% loaded sineA^S etg> nesiuja csilieete, tb, petot b*cm prose to aildewv tad again this tendency . ms reduced 1^- the of 5$ Titsaex 4- (la the writer's -opinion this still . is aet esKt^tTitescx ij, m.iprowtaby ear Chicago north.expoaim.) H: general @ppeasme|:4;;^ Pf&^th s 25$ Sg bodied oil wahLdL-Is'.tatter thta at ^% PfG eltfc, 6% bodied olio,' Uhsut the leaded .siae is rsfslsesd by . rdne csii la a fern resdctdEg pigseatstiiBa the hitter FfC palate -are less critieel as t behe-sior taaa lie stae oxide 2s reduced tad extender ' increased!: ' la (mother 1948 series the fitnor & ess increased and BCET decreased, after which, the sine oxide was reduced successively hr lowering the leaded - sine 'or sloe oside^ ead extender ms increased, as.fbHowsr . (1) 55$ Titsaex IOS/10% fitmoz J/45% leaded zine/2G$ Mg eilieate (2) 55% Tittaoz R3SA0% Titanex J/40% leaded ziaeA5% Mg silicate (5) 55% M.teaax B0HS/1Q% Tiisaox A/50% zinc xS.d.e/25% Mg Eilicat (4) .55% Titsaex SGSSAOS Tiiaaos i/25% sine oxide/S^S Mg cdliecte these pdats were all at 55% FfC with 4-4/4 pounds of oil per gallon, .with 25% Zs bodied liaaesd, ill the paints looked better then the series described la the previous paragraph, due to the higher eaatase HOs content. Dirt collect1m ad adldew increased on the aorth, going from (1) to (4), (g) Lead Silieate Bouse Pedate, Exposed tan, 1948, these palate were described In the 1951 report on psge 10, The 15% Htssoz A/58o5% leaded sincA*??* BGHL/50,8% Mg silicate paint was coigmred . with a similar paint in which all the lead (sulfate and carbonate) ms replaeta with ez equal rolume of 45 X basic silicate white lead. The paints were nsds tip at beta 29 and 55% FfC, 111 of the paints are still performing well, with less cracking when1 basic silicate is used, - 007-swP- 0t)000fi7Sl. toother group ismlras a pintetioa based on S5% fitenox SDET/ 5$ T&tanoz 1/50% leaded ziae/lQ% Mg silieah? 'ia ufeich the cfou'vaxlaticus uetetaate as .sSaptej, talth tfe* mb* results..- (h) High BlcBgg House Pedate.. Ehpased JBas? 1949. _ these axe bi#3. opacity ufaite house paints -applied one east ever a 50% Titsnox BCET/40% BCWL/53% Mg sHieate primer*. The SPS psdnt is based m. 25% BOEf/50% Tiisnor JMO/l Mg silicate (they. aim reeanend Ktsaaos 1 168 for better color a&d lees erosion)-. Geapgxiaons' am made ith Dewse'sOne Cast-House Faint? 'GLiddsa/s Sndnraieffi Imperial White aadi an unidentified.ea east touEe- pei^t a p3.gBffiitc.tiem @f S4o5% TiOg/54% titmius hsgtesiuV 41.5% sine oria. fhe Dit t o pslnt toora its ushel gry east sad sasesptibil- 1%-. to- eaedslng. She GlMdea, one cast paint-looks 0.1. but ishmm same erasing. (1) Lead and Zinc-free Paints. Tb.es paiutE described oa pages 11 end 12 of the 1951 report. The pigmentation consists of 5 pbtrnds of T10;, per gallon, half Titaaoz 1110 sad- half 1168,; fit 60% WiOg/40% Mg sUioate at S& FfC. :lt 1-1/2 years and 2 years the paints look good geLf-primei oa new wed, being especially clean. on the north end whiter teau eawentional xisite house palate? tat sith tame ddemce ofstall slit croeks im the south. in the points sith 75% aUqrdt? 25% CblrOTx binder, ChloroTOs 40 shows less ehslk than Chloroinx 70... In' general; Chlorotaz: iseeds to dwclep chalk easily tat does not. adNnoiee;t6 exo- sJxa*. T10e plus <srfestder in linssed oil chalks quickly tad .adtsaees to tad @tastan:-:^s;ih'ta'^^^l!iliff :pia*t f the' oH is replaced uith Chloxmws.' - Thssc-aKi-M.mcti.Te pi^iBst ^iists Mist b protected tata firngicldeg? end offer a great piohlesB when used to repaint osurmtianal zinc cantainiag house "paints.' (i) Dead free -White House Painted Exposed June, 1950. These paints .ax .-based, on a pigmentation of 20% Titanox 1168/ 55% zinc G3dd/22.5% Mg sHieats/22.^ edtatai carbonate, the binders end FTC's were irsrtedas followss Oil PTC m> defined Linseed - 6% Zg Linseed 75% 50% 75% 45% 45% 45% ' a . m - 25% - 50% -20% Mg Oil - 25% Zs Dxiaoy - 30% Eefined Soya - '25% Z2 Linseed - 50% Dxisoy - 25% Z8 Linseed -50% - 25% ZE Driscy 75% Brieey - 25% Zg Driscy 29% 55 55 53 55 53 53 S3 It the present time (tee years' exposure) all these paints are in goed condition rod quite similar, eren cn the north. 0007-SWP-000006752 M flat Base Boas Painta-, Espoeed June, 1948 Thme are 22^ F?C tint. bases idth pigment 12$ Titanox MMC/SC$ zinc oxlde/58% exteader in the first group sad 12$ Titanox EffiC/50% leaded zinc/ 5S% extender, Tii srtaidters t o w successively magBesdasi silicate, eeldm es,rtenffitec. dcssesdc terra alba and baiyteSo Hie leaded. sine paints show slightly mor chalk face than the lead-free graup0 With;, zinc adde-magnesium silicate shows slightly nor fading end mildews, baryte shews fair tint retention snd terrs site is outstanding in tint wteutiGffio Practically all aid color differeaces disappear ram leaded sine is nsepd. The sane general conclusions held at S5% P?Cc ,, gy *<"* ' Only a brief rmlm vss'ide ef the Mationel Lead and S-if eooperatif series of exposure* evaluating 45 I 'Bade Silicate Ifcite Lead in house- paints, These hare' been.- described in previous reports -and cover .three methods afsubstituting. basic silicate'and 12/88 leaded sine far 25/65 leaded zincin' bites, and buff and grey tints? lo Sine cxlde replacement ty equal poundage, lead by equal volume. Bo Maintain 55/65- lead/zinc ratio, replace on total volume. Go Is B but replace on equal veigit, adjust volume ith extender, is further variations, the sine oxide level as reduce from the regular 52$ to 25 and 20%, and in one special variation Aao ZZZ-55 ess sub- stltuted for leaded zinc, A special report -with photographs is available for loan to those interested, In gaaeral all the paints are perforating veil after 4 years of e^esire, and1 there are very tm radical differences, Basic lead sillcoehroaate1L5Q . A sample of this pigment has been submitted to us on a sendeanfidtal basis for evaluation as a rust-inhibitive pigmento It is a ehromated 45 X silicate pigment, made according to our understanding from 45 I, chromic oxide and potassium chrcmatso The pigment is yellow, eith veiy 1c opacity or tinting strength, A series of metal primers put out in 1959 shoved a ehromated red lead to be superior to red lead in an alfeyd metal primero A basic ehromated red lead was even bettero Panels put- out in 1949 shoved chromated lead sSHsete to b@ still better, specially hen sot tcpceated, e will proceed with cur own evaluation3 Incidactally; National Lead does not recomend 45 X for metal primerso It. is fair fer salt eater immersion. 0007-SWP-000006753 On Jure 27 m inspected the pend raosuras sad a few house tests conducted ty tee da Pont Pigment Division at lewport end Wilmington, DeLasisr, As:stated,psethtesay* fee ertrt'heat see say detailed inspection Sa^ssthlle, Some f5jjiasa$'i4fe*a^^51^i^0tai#^.,^^diag.'a^:'8|^i^l''^iiaew/fmeJf ;3.a^-4itit' cost cf erecting their new taildiugg, ^Mda ^ill b useful, ia ^gaming cax' n&-Chii^igo, ^osanre. fam (a) White House Faints It will be recalled from tee 1951 report teat we were interested in certain comparisons of various titanium pigments in so-called "high lead," lw lead., and "no lead? formulations Details of tee formulations were given in the 1951 report. It should be, kept in mind -teat the ''high lead" formula, actually a2.rrS.ed $8% cf lead pijgaeafc, and tee so-called "low lead? formula - (Ti-Sil) 17-1/2$'lead* Some cf tee earlier observations still hold, Ti-Cel at tee same fi02 content is still cleaner than tee paint with strai^t X-CR, Dirt col lection is aggravated as the lead content is reduced or UMmated, She `. oil paints show generally:poorer -appearance and greater differences tern the ' low oil paints (5,75 pounds of oil per gallon), .Cl?), gijft Feints This group included several series cf exposures of varying age, . Fundamentally they consisted of paints in which the T10a content was increased progressively from 1,8 to -2,2S pounds of TiOa per gallon, and strsigit TI-Pus FF compared with 50/50 Hands of IF with X-CR, B-1X0 and Ti-Cal R-25, There all were Heads cf 80/20 IF and R-610, The general conclusions which ms? be drawn from these series is teat straight FF shows the best sclf-Hesnsing, and teat dirt collection on slower chalking TlO? -types is redact whei intermixed with FF, Self-cleansing is improved as the TiOs content is increased, 80/20 FF/R-610 is approximately equal to a 50/50 blend of FFA-CB. in resistance to chalking and washing, R-610 is recommended for inteaeix with FF to control chalking where washing has censed customer complaint. Ho evidence is available as to dangers of yellowing, (e have our own exposures covering chalking and washing,) (c) Two feat Srstems - Durability. A top coat with the typical Ti-Sil pigmentation of 1536 Ti-Pure FF/ 50% leaded sinc/55% Hg silicate was exposed as two and three coat work selfprimed and over four commercial primers. Special primers included 12-1/2/45/ 42,5 and 22,3/45,5/54,2 Ti-Pure R-610 leaded zinc/Mg silicate pigmentations and Federal Specification primer TT-P-25 where R-610 was used as the Ti02 consent. 0007-SWP-000006754 fjae.conclusions after 4 end 5 years* aqnan were about as' eamectei. Stos coats, of course, wore better than two coats sod ssHf-prtaing not as good & using properly fos^ated,::eeci:al,,pjidi8erdo A M^Mding (2 pounds per gal-. Ion) B-6i0;pii^ir IcpK very 'good:ijjiiihi4' flOA,' fSm;uta|p>.topcoats, 'bat netar^Oy - ^sapt tbe'pejatfer'iis 'spriei far*: The S-M 450 '" Tfodercoater is performing md< da Pont eceeludss that leaded-sine in the primer,,side1 In E'etarMag erssias and' Wide? bat saks -fe ^etes mslnerabL to biitetetihg.. ' ", UL_Me - Paints da Pont is placing a lot of emphasis oa this phase of their foasslation and exposure wctfe. They feel that in the presence of alkalinity intsodaced,idiai...eBlci'ft- carbonate is used as the etxtader the sine oxide oatat can'be reduced sharply bdctr wairmticnel levels. Typical pig&entatiaas under obaermtion may be grouped as fellows* Pigatatios. Ihlte _JiM.jper.6al, . aOg 2n0 Oil 15/50/55 Ti-Pur FF/leaded sSnc/tig silicate 12.4/41,5/46.5 * /. /CaC0s 1.27 1.27 2.78 4.25 2.76 5.76 20.1/11/68.9 / / 1.82 0.65 5.66 17.5/41.2/41=5 25o1/10o7/64.2 f? / / / ' /* 1.80 2.55 2.76 5.79 0.65 5.62 P7C -' SL.e 41.2 45.1 40.5 45.7 16.9/53.4/49.7 /Adcular ZaD/ 20.7/5,7/73c6 / m - / 21.6/51/47.4 m / (B / 25.8/5.5/68.7 / . 19 ' / 1.40 1.85 1.92 2.55 2.76 4.05 0.50 5.65 2.76 5.95 0.50 5.62 55.5 45.4 57.8 45.9 The TiO^ content was adjusted to hold hiding constant as the zinc oxide or leaded, sine ms reduced, and all substitutions were at equal binder require ments. Series 11027 were exposed south sad north vertical on August S3, 1950- and Series 21054 on August 29, 1951. 0007-SWP-000006755 llmeataticn XS/Kl/S IS.8/L2 7/68 <> 11.5/58.5/SC 15.1/8.8/78.1 IMt * aa/ISsl. Ti-Pur ff/leaded ^se/Mg silicate 2.76 *' / 7. * 0.56 8/ V/ / CaC03 - / ' 2.76 0.53 nrc 4. - SL.6 5L.7 44.8 47.4 fhese paints were exposed in Series 8827 south snd north vertical on March U, 1949 a Hiding power was not controlled, females are at equal free binder. Gray or Buff Piggaatatlsn PVC Lbs. 2aD/Gal. $ 12.5/4E/42.5 1507/i2o5/71o8 fi-Far B-610/ladd zinc/kf silicate / / 2.54 0.56 55.5 52.2 21a2/26o4/62o4 11.4/5.9/82.? * /Adcular ZnO/ CaC03 e/ - /e 2.54 0.56 42.9 47.4 - da Font believes that calcium carbonate erteiders mqy permit a m&rfeed reaction in the zinc oxide or leaded sine content of Kbit or tinted house paints. .'We recanmaid caution in adopting each pigpentations hat am trials wold be in erder. On of the big problems would. be to locate adequate supplies / of satisfactory ceOLcims carbonate end to be sure of uniform quality. du Pant has had the most experience with Torfe Mting from R0 E= Carroll. Inc. Evi dently they prefer dry ground whiting over wet .ground end avoid precipitated types. Georgia Marble's Io 10 White end Tho^son-Meinmim's Ho. 1 White ax satisfactory so far but test expedence is more limited. In general, the low sine oxide or leaded sime-ealeitsa carbonate paints an per^oxsing well both in whites and tints. Whereas the low zinc oxlde-ffiagnesius silicate.paints show very bad mildew in both i&itee and tints end poor tint retention, similar paints made with calcium carbonate show good performance and good control of tint and mildew. Actually in gray tints perfommoe is good all the way from 2.6 to 0 pounds of zinc oxide per gallon, while in the buffs there is some increase in mildew belcv 1-1/2 pounds per gallen0 Still lower 2n0 contents say be entirely practical provided m auxiliary fungicide such as phenyl mercury oleate is added. Brpefcer has suggested the following formulation for a second grade white and possibly even as as all purpose white, since the TiOa is 2/5 Ti-Pure FF and 2/5 H-clC= A similar ell R=S10 may prove to be a first class tint base. We as checJ3i... 0007-SWP-000006756 Pousds/lOO Gel. Gallons a-Ftiws if Si-Bur B-610 icicular 2a0 2ZZ-5S Serfs Ihittog Soya lecittSn Alkali lefined listed 1 bodied linseed ?A$, Ph'hiptathjmat 8ft Mn nsghtiw&at lateral spirits m so m eso 5 288 @9 8.9 1.2 dfc- 5.06 1.45 5*20' 28.78 0.58 54.78 . 31.20 ' 0.95 0.15 mm. 100 Ibis formula should b matched @7 carefully for mUc ykLlawing . a Hie calcium carbonate aaj accentuate this tendanqr. . (a) Milfigur inMTaltors ; to Boat is very highoa phyl mesrea^r deate as a Hildas1 inhibitor. - > fh^- b&Liev that it is meh bo t h effective than Ad-Xt or oar {22SS) cregrX mercury naphlhefiat: sad Mae it costs less a notable saving can b warn* are now testing a 1<3% solution of fee .cleat which we 'obtained,from the da Poet Organic Chemicals Deparfcmast.: Other ftagieides showing promise in their tests are phenyl erciiy sallqflate end cuprous exidL. Theinhibitors were tested in amounts of 1/2, 2 and Eg weight based on the total paint* using a IQ/lO/lO/fO Si-Bare ff/Si-B&re B-810/Leaded zdne/teg silicate' low oil paint* She control is Seeing bad mildew after . 1-1/2 yearss erpsEurE. ShirSLan is fair, hat off-color, Copper-8 is fair at 2 and 5% bub color is poor, Ounllate #40 is ineffective* phec^fl mercaljr sali'qrlate is effectivAVewaof at '1/2JC (used in cancantratad solution) * Iras &% of MIt le not as effective es lfg$ @f pheyl mercury leat. ' There 'were some sets of pads efeich were not examined toe to the heat. However* it was thought that the eon&aelane dram by to Font might be of interest. It shoald be emphasised .that t o had no opportunity to . confirm these. eanduaion** Ardol end Brissy show excellent performance as house paint vehicles in erasures approaching six years. There are limited indications that calcium carbonate'm^'W a preferred extmdsr for soybean paints. 0007-SWP-000006757 (.el..Stain '.resistant mints One group of stain resistant palate istf fenezULated miih E2/43, 4D/60 pod 55/65 EWFure FF/Mg silieat, at a WO of $ in -verioa vtefcleS, ad ' tipoasd' la OctO'b.gr^ 1850 eai Merck, 1851. . Has ^b4ri wspa made Bite'and , .miKaiy laste at 0*i$ hf wtet of tee tsfel peajs.t a Mldw inhibitor* d3vfest-r!6 eeneiusioB.e .aba list teBBidisinjg the r^ativaip teoxt 'tester, tlE,c.lrBpiE lfl effere mo'sfe pxaia for l#ah-zlBe ftee ftente of hi# total fiollda ?2oSS* ly voira) wite gaad bmteing'properfeieBc ametdering E^lleatto etomrsctxlEtieES: HllS55''lHliiMi,tioss.s, eater Bad stein r'ic3,toe, rcK^ead Isbaetin 5 I as tewbewt psaslsiag dteasder, (h) ..Blister Realstance * Ceasiderahl detail m & Font's' blister resistance teste sad their blister test tense is awU&hLe i the report supplied as: at tee tine of our viStt W did Eiot inspept the test house on Ms call. Observations, muds last year appeib on pages 7 sMB of .the 195L report. . M Font's present observations are as 11s b - 1 Paint compositions vaiy %-idaIy la blister resistance with apedal Xead- zinc. pigment fre: a&lgrd stela, resistant %pe palate shoeing exceptionally sd pCTfoasaee fts tested oa sew anode/ ' ' Sine oxide, used in this work as leaded sine oxide. Is deteliaatal to the adhesion eharketeristice of certain films as tested nader adverse Bolsters esEiditieQ.Se - Is. this eoaneetlen, howeier, 'a farther emtaafete of tee vtelcX effect, is needed, 5 . ilkyd stein resistant tFP house paints can he Bade which will atew sons permeability than , regular house paint teen ased salf-pslmed on See vend. 4o fine oxide, ased in this vote as leaded zinc oxide, or white lead in a primer sertb to decrease: the pemeahillly of certain atepd type top ooatSa .. 5e ft applio&tlen of m. - sUyd-stain resistant type paint over a ptiser or first teat shite carries leaded- zinc oxide results in a Barked decrease in permeability which aay' lead to severe pealing, 6, Eigi peaeaMlitr results axe in tee direction of saperior blister reslstsiceo 7b It resains to be daaonstrated teat alkyi stain resistant type paints can be Bad which will retain pemeabdlity sad sinew no greater teadmey toward pealing tern regular bouse paints whan used for repaint purposes under advene Bolster conditions. Further, tee actual field perform ance ef sate stain and blister resistunt paints is pet to be established- 0007-SWP-000006758 Bliifete ;.Batfaes8 -n- At . 51 lfefclw Ho. __ Paint A Eegele? 3m.m Point- sdf-pr&iied B Paint A over Fed Spec. Tf-P-fii (Barr.) Zindlees ^p Primer P-1 a -pSint k error a -TlParaP M30/S0& SiO/Mg SIX. l^p prtaer at 5^ PT, F-8 i> Sam :as C..nlth painer at 408 P-S 1 JUkya Stain Beststant Paint I - self-jfedaid F . * * H- ' . . ^esiaar S2 72 85 71 99/ ,100, ISa. I 121yd Stain - lesigfesat Paint I fl/P-1 *- 6 Orr Pxlasr P-1 - ZineleBB 'E/P--2 8 * P-2 - Hitfe 38$ 23X0 w -' *' n Bftfc Argo % effective MULster resistmee JL ' 1^. 99 88 1A=' 82 x. 100 -Wet adhesion - Sestdi* tape 100 96 4? ' 100 - Spatula 8 4.1 2.6 8 Motes* Spatula rating - resistance to separation of U& ftoa wood. 8 - Good 6 - Fair 4 - Poor 2 - Tesy Poor D^* panels aH shoved good adhesion. Average vet adhesion rating based on 20 readings for the "Scotch* tape and 10 readings with the spatula. 0007-SWP-000006759 Be. . . Patofe A 'BsgcS^r.bsoMm^f^Blb S- - A3^pd State 1Astsst Patet 1 f K * 11 1. ' ` PkAfe$s*aSngpMeMcif%S.E S&f-prtead .S .37 1.07 Over Tf-P-25A, P-4. Steeles m l^piL&eteg lead .39 .32 .76 .75 .3 .63 ffistes ' iTUagt of 5 readings Method of test Fedemtim Standard 9-47 Official Bigest Mo. 271, (August, 1947). SmUtSASUL.; Alkgnd Stein Be^Letaat Faint I 2/48 -^i-a&reP FF/Mg SiUeete te GlFptaL 2475 at S0$ P.T. Allqrd State Bssishsnt Paint H - . 54.3/65.2 - "TtePozeP/Mg SHieate te Atopies 1271 at F.7. CXt As^ffte>a,,ate#e Pafets . da Pont found that & PXiolite S-6 point formulated with 20% SL-Pure B.-610 on B-110, 60% bazytes, 10% Mg silicate, 10% mica te Hiolite 8-6 plestisized with Ghlerowax was tee only oaspoaltiaa tested which showed good penfoaasic on glazed asbestos shinies. The Flielite patet and tee State lesietaat Asoplaz 1271 patet are osasidered desirable for cement veneer ahtegies or -surfaces rwlatiTnljr high te alhaltei^r. Standard hones paints showed @od perfoteahce on gvt^r or regular asbestos shingles (m do sot know whether these were first weathered). Espesares of latex and vinyl easilsion type paints are te progress. 0007-SWP-000006760 -dS> Ve 3y had Us to. esassifis two fe Foot test hmees, idth the fflBflssfa&. spedUl: e^#ts 5?th nettegs '. ' (j) 9m hsoite this is m tp*r few*! tease md B2g Is a ssssl eetttsgc Prior to 1^1 the dfber onpUtaed of mststag of 4s-Pest #40 Bttte'O^w- thi fil#d tea harnt wHs withina jre the test paint ms ^1^*1 Ja lpril(i 19S1 esui, eoasieM of e straight fi-Stts&-920 Alto. *Uh 2,ef fsmnuB RsSl% of leaded jdfi aai 88 psaadi aptat 933 pea ' ediieao tMe 3rsa? ssKfaME, a^4Eg'-fE EilSw^e fhil the .. iiidter; teas teriilee^eia^ lit weriaM hem taps safer to kn added a tmgkeMm* the hmm presmta it r j t fsod ^wmw Howoter. it oe merely fee esaaed that's etraitfit S-43.0 tlO feist M ealm oar mating . pjre1&m# 6 -tl?ie ^(Si^ ^gei leseHm tetew 4tat> eeUestdsn m mMm at a ; . (fe) da Peat haao This tact has fee 'utiftr testa, fhr smv&st& years 'aad'agpmm.in:;prevlmB:zperteb . the nest xeemt test ms applied'Jar-S' Iwte, 19BQ. _ the prim* ere Twawi-ea ti-Par..B610 and incite a sis,- , smtsdalng. topeokt::tSat tea type 'of'fbmft* (4S$ leaded sine) sad a maieiga ' f ff-P-25, Bfaich is sinoleseo : the m-seUed t@4 paint 1b oHavmtlaai&i,' : - mLtah. -.luOLC IF and half X-SB 22%* the SfweieXs iae&nde t eetmBtimdL leafr- free (fhae-yealitllig);.; pigMitstlms' t&th St fiOgj, altb Iso Z2Z-S5 sh&e esi.de ' is one instsse raid lur Jsrsggr1 XX~5QS is the ether., ltter sptdsil tee & Mmm^tlrn; .of leid,atae/24,i.:#ti Mssk the Rytal ms ssqp3y stirred in sad 0e$ Ehcstel ms added., ttcr is . ,.; elss a 2m? siae-SBiclma Oasfesaakie paint meh he ms dessraifewi mdr & Peat. (d)e the pigesaietlon sracietg f 12,4$ TT/IBb<$ IrWlO,^ Imdmd shnc/U& eal- elm eaztteftte at 4S.4# Ff, this ealcslEt <at to tBS-tMMe ef s pgsmd of dbae oxide .for pilss.c ill of the points axe 2s geaerBlly good' eonditiAo the lev siae osdde - ealcium oorhaetc pdst seme d,eeaer then the lytel pedst, and the reffsler leaded else: jadat e tz2.fl# eLeeaep fem the JX-S9S paiat* is um&lf efisy oae did utsost to mekm oar trip Safoisstim md as ^.ecsmt as it ms possilOLe; mssidesiag the veathero MflsJE Me WM LOO Sireetsr of Paint Besearch 0007-SWP-000006761 a^wBiasHa^giBaai^sasig3iggeaa.ii.Tmiw"'<-'*TM