Document 0JKa1wNEwK29nLd9Rv7ZdmKdx

j' > V.. RETBPiS TD liSiLL U e Jo Do f$eBrasy* ila iMfOlS S, La Hedttftfty, n D"8032 0* Hit Bb131Wi 3p i .JBtp* S%) Wllm* 0* a xxiff* miJo . Bo B, Davis,, Lab* .00 B 3. Jierkla* Lab patent Section* Lab* r* L&b (5). : PH: 1810 "INDEXED",lW- Marshall laboratory February ID* .1953 mmmrnm r e p o r t b o , h -s 42 Prepared feyj F.,0 0* Welch Rf' .*?* V * wmrnms in f mt mm p a in t ' C'". ISimODgOflOH .This work comprised tile evaluation f various extenders as substitutes for the jahrs^M&nvill di&tomaceons earth (Gelite 281} In the new Improved Town and Country Flat and nrn deep tint flats* These flats are described in Release Letters #1X7&= and #1423* This work was performed wader Project B-5073# Class 0* and wasprompted by the unreliability f Ceilte 281 * mmiw km. c o n c l u s io n s The Great Lakes carbon Company8s DlcaXlte WB5 (diato s&esous earth) appeared to be .a direst substitute- for celite 281 in both types f products* The use of the National Lead Cepanyas Lordte (a natural mineral .composed of dl&tomite and calcium carbonate) seemed to give a direct finished product match to its Oolite 281 counterpart in the deep tint; however* in the Sou and Country Flat White* it gave an acceptable product but it was not a direct product match because of a very slightly higher sheen* Wollastonite (calcium tneba .silicate)* a recently promoted material* did not appear of interest because of film appearance and grit* Incomplete evidence showed that the Great lakes Carbon Company8s Bicallte L2 was promising and that Bioalits J>1 was note. celite 266 (w-165) appears to be promising as m alternate raw material substitute for Celite 281 in the new deep tints; because of its poor color* it could not be considered in .the white formulation* N35463 Hesaoreadum Report Hoa February 10* 1953 This emlmfcion involved f.oxwilations based on regular and low odor mineral spirits and vehicles* ACTXOH TAKER OH HBCOMMBHPBP Xt is suggested that the RAeaXlte WB5 extender he on altered as an alternate source or supply for caiifce 281; however* it should he pointed out that this .material was a special sample and not a commercial Item* Additional information on the suitability f Dicalite L*2 as direct product .substitute should be gathered* The us of Celtte 266 (W-I65) should be considered as an alternate raw material for Celite 281 in the new deep tints* The formulations .employing the Lorite extender should be considered as urgency replaeemsats* BXPBRXMBHTAL DETAILS . The various extenders were evaluated in the high PVC= BTi*>CalH formula and also in the Pigments Department5 titanium dioxide^e.xtender formula against the Oolite 281 as a control The overall evaluation program encompassed regular and low odor/mineral spirits systems* production valuation and pmc ties! room tests* The optimum fomHations are shown in the breakdown belowi a complete breakdown f all forwlations is shorn in Table X at the...end of this report* Color Code Solvent Typo Extender Remarks White whit white white p62itr3J598, ?~621u ~ 39116 P>ib2l<U* 3917? . . P~S23.~0~ 39157 Hog;' NLn Spirits H i? Dow Odor Kin* spirits n tt High FTC3*EU0al" f? I! 5S Lorlte Dioalite w b 5 Jjorite Dioalite WB^S sl higher sheen safclsfaete; sl higher sheen satisfacte' Deep Tint Deep Tint Deep Tint Deep Tint Seep fist p^6aiir piaSuw 39118 p621c^ .39159 P~621-flk Wvt Beg* fin* Spirits It t? IS l o w Odor ln* spirits . .55 M St JJ Reg# tUn Spirits TiQg^Sxt * is . it IS Lorite- Dicalite w b *5 n satisfactC'' n n 'it SI Lorite t? Oolite 266 n ft DUP030003461 immmmkm Reports Ho ,m*54.2 February 10* 1953 Satisfactory production batfees on a lov dor basis wore emmifaotsured with the Bleslit S=5 extender and the Lorite extern* dor for both types of flat wall, paint However, as stated before, the .Lorite extender-.In the high F9C"TlH3al" formula. does give slightly higher hut not objectionable* sheen The various aspects of the development are discussed in the following paragraphs? The physical property characteristics of the Lorit (M-50TB} and Dicalite B-5 (KSH5079) formulations were comparable to Cellto 2Bl for both types of formula? that is the application color color holdout films appearance and stability were equal except for a slightly higher .sheen in the case of the Lorite in the high FPC-"Ti*C/al" formula In the deep tint T!Oo^extender formula, the Cellte 26.6 {W165} version was also equal in physical property characteristics The method f substituting or replacing the Celite 281 In both types of formulae with these various extenders Dicallt W&~5, Bicalite .L-l, Bicalite L-2 Wollaston!t jp-i and P-4 and the Oolite 266 ms a direct pouncl-for-pound substitution In the ease of the Lorit, for the high PC"wT;l-oal" whit type formula, the volume of calcium carbonate (w90) and Celite 281 (w-99) was replaced by m equal volume of Lorit? another replacement was half by weight of the previously stated volume of Lorite plus additional calcium carbonate to .maintain the same PG 0 For the titanium dioxdextendr deep tint formula, the dlatomaesous earth content of the Lorite replaced the Oolite ,281 .and the FFC . of tbs paint was jaaintainefl the same by adjusting the calcium carbonate (w90)o The Wollaston!te P1 grade (jGH393) extender gave .a slightly higher sheen in the high F0-t3fiCalft type of formula and in the case of the TiOg~xtender type of formula a fibreus texture W coaid not detect any difference in the laboratory between the Hollatonit pl and p4 gredia and, inasmuch as the pl grade was cheaper and sossicrei&lly available it was selected for the production evaluation batches of each type of fiat wall paint The production batches showed excessive large six agglomerates r grit Several -other diatcra&eeous earth extenders., the Blealites 3>1 {DS24lll} and L2 08-24258} , wore examined in this studyp but not enough sample was available for a. comprehend siv evaluation However, it may b stated that the Bicalite 5>2 appears promising The cost of these extender substitution foHsulations was appreximately the same as the Oolite 281 central* DUP030003462 Hesar&ndipa Report w H-548 february 10, 1953 Table X shmm a listing f tbs varioas extenders and their characteristics In both types of flat mil paint and for both types of solvents* immu, xmmmom EJh'saig 2/5/53 Attach, Bo Jo WBBCB / DUP030003463 HH a W OS 03 ^ tii IT co 55 FROPBBffXES m P LA T WALL M O T S V S 2 M VARIOUS 2 -1 /2 75 79 86 >S Ol 4 CO0> i I 1 >163 01 Ol to m *$ 01 r- 9gH$ oj -" > a oi rl H Vi % A rC? % ill OJ nm a srt H O H <? H O H s0s\ foi* CfOO *5* H rl rt H rl O H Ol Ol H HH oovi iA in S3 JSS* .IOpDH.<Hprl H I r*j J S3 H ri Pj O o P t P ra HP ?ua P h H i .0 Os 5a$ *Q3 iOs o0 H 0p 1 <>O* .9te, CO of <a p A.l UH0i* OKI .* S A oCO _ . 4H COl' VCbcJ-O-ou---lHm-Ni--^I-Dwr-t-ia'iaHMnSwVimwOds* hvi'<HOHnoMo\.i'iVDr=Cisn>ahCO nlTOWcv&0'Va"in1rA>IriHH0ortt*fWHHi0l1IJHPrHHnlI0ftfvOl*slrmr0K?iitJtnhcIir0HTntnov*!VCir0Mni?f)liVhIni0fniH*llHT>r0iG&ihNnr0N.IwH|*ai'00HnO{ hr0MlNMHS*a0OnrttHlhaK0larvt*Ori0aiIlp,iNat0Hnv\hc2%sfIocFiViicHQaItuNt0Nr*l\|%NfI-,tPt* n&lnciunpiit cofio mAt coo<i to &1 tn otm c a ciu toft* <npmI mfloi* mpj B 45 3o DUP030003464 aa a i %ii oi n K8 i 1I fill i in w n in to nn 8 a 1 I 8 H 15 DUP030003465