Document QMJ94rmpZoma18n42nrbNX2ev

Outside White i!' n" / W-Z6&9 Drier 1-598 - #500 OH Ifl WISHILL LI : *t. VV;v s p * a , j . nmm# n Mr# 0. W Clark, 0hlo*go Up * -H* f. 8dia, Ft. Isaisam Up . 0. D, Ifeff, Everett Xp P Jo griffin, So.* San fees. h p .v j . w . niff,- m9 Ip , O. I. II. Utricle, Up* Up . It 0. Lasapert, Lab. IIP* 8tD6Pt Cfraweg, Lab. Philadelphia Laboratory July a, 194t mrnmm mear #1-129? liraiiCl COFf. ho t m zmmtm m&mmmm o f *w >-i S39 warn mm 301S38 WJsm-mag la the original, formula for 301-838 Outside unit, 1689 constitutes about half the least drier. Shi product contain !~5f?8 in place of H-259 Hashed oil mid require about double tfc lead drier in order to obtain satisfactory drying., In the origin al laboratory work, the use of straight yp-1428 Lead laphthanat resulted in higher solids content and cost, m that it appeared necessary to include sea IIS- X689 t lower the solids content* .Recently, in anticipation of a shortage f litharge wMeii is needed in the laaaufaetup of '$0-1689, a number of papal lei batches have been mad in the Philadelphia plant using th specified blend of TD-I689 and TO-1%28 in one ease, and IP-1428 as the total lead in the second ease. She plant result indicate that the expected high sol ids content with IP-1428 does not occur in the giant, so that W~ 1689 is not necessary, fh elimination of fD-l89 results k 1 slight improvement in brushing, Shi is desirable, sin 30!t*"3. has been found to have slightly poorer brushing characteristic s than 301-827, the all-linseed product which it replaces, la ac~ eor&anc with these observation, the formula for $61-838 h& been reviced to eliminate IP-1609 Drier Sla attached table show the six batch which haw been examined in the Philadelphia Laboratory, All batch w' about one tfeels old when they were brushed out on June 5, 1947 She sta bility i expected to b satisfactory, sine the first laboratory batches containing IB-1428 as the total drier are now six months old and are still in .good condition notebook reference? Notebook 3.323, page 56, 57 .PB3L&D8LPSIA UBOMS0SI mtlBB no. ,/v 'X. . t _l..- ' X-y . 1 '~~ w. f . -smsaio -v r>n. OF TO~l689 mm m 301-838 Bat Oh Drier 43865 ' ?P~X689i. IB-1428 45666 B B 45867 11 a 45871 43872 43873 m-1428 B II (feiXon ' . Weight 14,19 14.08 14.17 14,05 14,00 13.91 97 94 92 85 89 84 lass of. Brushing tapping P003* a Tory Poor n aa t . Fair " Poor fl Fair * a n a lo differences In gloss, flashing, ..non tae&iaess at 24 .hours. $ DU P030003003