Document 2RdMBK1y87JEk7GgJ86eDK3Z7

J. 7. Hunn ChisagO Aurillarlaa RasaarSh St* Unli * ud e August Jl, 1953 h. 8. Cayuaod August 7 and August 20* 1953 Darla Ralnt Conpaay Llthopsns 7<a hara wads an attanpt to try to rum dams tbs potential oouss at Dillard's trouhls an litbspsns, la that ha gats '7 had Battling with our llthapsoa In thair Ranh and Dook Rnamsl. To oawplata tha rwssrd, ha haa Indlaatad also that ha has on rarloaa oosasllaos ra Into similar trouhla with da Mat's lithapaaa. This rattling troutla la also auparwntly aawlad with rsaldua on tha rallar mills am rarlsus aoaaslsna. Our attsapt, than fort, to salra tha orwblon, haa harm diimstad toward using a flaar 11thspams, iuah aa Bird lithapaaa, ta ollmlnata tha awsldua, and la tha hops also that tha flaar partlala ULthopooa might daisy sottling, roallslag that anas flam llthopomas, or mp othar pignsnt aattla, tha sottlad portisu usually Is hardar thssi tha ooaroar matorlal. Tha Bird llthoosms did mot swam to olimlamto all of his trouhla, although tho last lnforaatlam asams ta ha dlrsatod orlm-- olpally at asttling rathsr than roaldus. Aa you will rwoall* Mr. Taatarllmg aawt wa tha foilswing nntarlala with tha Idas of trying to run dan tho potonttal oauooi 1 gal. floor Bnaaol, ft1lad duly JO, AIll 26l60 1 gal. Tahlolo, AURL 26164 1 gal. Raimalitb 1|C7 Bird, Lot 053*6*, ADM. 26l6d 1 gal. Pusmollth Bird, Lot C53*6C, AURL 2616b Tha twolots of 11thop ana roprooont tho natoriol that woa lnoludad In tha oarlomd ta than. Tha ana gallon of flour Baanol is typlaml of tha tyoa of Battling thay gat. Hr* Taatarllng has indlaatad that tha rwhisls la a modlflad T'Sanalla, 22 l/2 gal lama long, ^pi mlaitaljr Ml Oltisloa, 201 Llaaaad with Bashnslta 1106, amd th* ha uasa Land Maa^aooaa md Cobalt Haphthanata Drlora* Tha Labwl analysis ahaoa Rlgnamt 3U.91 ILlthepama lOGl) Tarnish 65.ll (Kator Gva= - hag - Llaaaad 50l mi) from this lnfarwatlaa wa has* OwlIt wp tha fallowing foraulat 35V HOT 9.S6 Gal. Lithapaaa 19.U QaL. Ttnidht-lb* 514# 6.75# 70.8 Sal. Varnish 1-168 >90 Gal. Load laphthanmta 1008 1.6# .2J Gal. Wwgnaaa laphthanmta it Total 1033.1# 101,30 Oal. T*fft*/0al. 10.20 0007-J3WP-043771 N23255 H. B. Cyiwd August 31, 1953 agent, Tou will nets fro the abwaa that so uspsasloat/ heeeear, ee* used la these paints. Due to the oonparstlesly lee visocilty eMah ee obtained, ae thought that had settling would result! hsewesr, muah te our surprise, after 11 d^rs, the llthsponeo tested are la aurBrlalagly good ocndition. the following llthopanes eoye toetedi 1. Ponolilh k<X*7 Bird, ADIL 2616a 2. Pernslith 1*90*7 Bird, ATIRL 26161 3* bemolith Uv7, AURL 9li3 (let C3t00) (This ts typloal of the old h-Otf -reduction.) U. *ollth .Li33, ATAL *553 5. Panelith IB3, AIM. 2563 6. Panolith 1R1U2, ATIBL 2265 Ae a eontrol ee alee ueod a pint aenpla of the thoroughly mixed gray anneal whleh eae outwitted. Aftar 12 days all the laboratory eenelee whioh wore ground on the roller nill et 5 te 5 3/U Jlagaan grind shoe eurorielagly good suspension prepertlea, with ae eettllag la the batten, with the oxoe-tlan of the Panollth lSlltZ ehioh shoos altrt ao^t settling. In eoat oaeea the pignent eata etlll la oontaet with the aurfaea, but la sore eeaoa there waa a alight film af olear oil an top. Ia the oaae of the gray ibroh and Book Wnansl, It had again, as Mr, vtxtorllag Indloatad, aottled rather badly In the betton te a tight gvngr eondltlan, ehioh earn difflaalt to bring bank into suspension. I oust edhelt that ee ease aurprlaed that the llthwpone, with out the addition of a auapoaalan agent, did net aettle in this eohhsle, wea though tha ooealstenay earn quite low. We eaaaet free the basie af this work, deternlae tha oauee of the eettllag prdhlsn Allah Kr. Vasterling la arm rlwarning. there ase aaiaral things that lead us to balloon, however, that It la net in tha 11thopana. Uoat i^ortont of thooo Lo tout non* of the llthepono aaaplos settled. Wo will, baa wear, hold thews llthoDona samples ladefinitely to awe If they do settle. As 1 indicated aho-M, soar exparlenao has beaa that the Bird lithepona awttlea somewhat aloesr, but mam It sottlaa, it, Uhs any fine pigment, will be harder than a aoareer pigment. la order to try to na down the aauao of the trouble, eo in wondering xee whether or not Ur. Vasterling is exporianolng this trouble is all oolors, or Autber it ia peouliar to tha gray. What wo are think ing about bore lo that the pignent aanufaeturera, in soan aaeaa, la order to eliminate flooding and fleeting, hate resorted te the use of tremtavnt of oertaln pignente. Sines blank pigments are neterleuely bad for float ing, ea ore eenderlag if the blank weed In this paint ml0rt set bo ths eouroe of the treuhls. If tbs settling oeudltlea is typisel to all salers, of oourao this would bo ollninatsd. 0007-SWP-043772 0007-SWP-000127122 B. 1. Cywid -> August 31* The mo end suggestion that we haw* la aladlair to this In that It la baaed on tha sxtended Mage In the tut to* 7*era, particularly of treating warnlihe# lth ailloonea te obtain osrtaln daalred aftosts. This, aa ee hare fowd to our aorre* la wary oases, reeulte la any undaslrable properties ad. lie el lsri.nattng certain undesirable propers lea. Tanoe, the reaeen I eak if tie trouble le not Halted to tie grays, oeuld it be that allloene le being used ae a treating agent In the wonriahT This certainly oould eauee bad settling, I oould like te point out alio that ef the 3 da feat lithopcne angles tested, and these are resent saaplas, ne did shoe erne tendency toward settling, while none of the ether sanelea, including ear own., showed this tendency. The feet that dr. 7aeterling has Indicated that the trouble le rather slueIt s and occurs periodically lndlsatea te ms that it night wary wall be the fault of ease agmt being used* this oould parallel the sane trouble we had is lithographing where llloenea were used. It aede It wary dlffloult to run dom tie final eauee. We *111 held the copies of paint for farther test en Mttllng, end if aiqrthlng dewelepi we *111 let yea tee*. In the mantles I think It night bo wise to talk this war again with Nr* Taeterltog to 000 If another eauee night not bo fomd for bla trouble. Zf you or Ur. Taster" ling tool that additional work should be done In tooting 11th open a te their vehicle we ahall be happy to do further works but until we gall similar conditions here It will, of oourse, be dlffloult te rwn dean. _L " ' C. S, Ub u Vineml Produete Laboratory CRAsff oo< m IBS JIB 0007-SWP-043773 0007-SWP-000127123