Document 2RV7Dbnqy0bp90yj2p80JZ9VR

' ' . KR. JOHII MARSHALL (3) DIRECTOR CHEMICAL DIVI31OK ROOH 0-7014, WILMINGTON CC: to. u. G, nnody, Phila. to. C. Clark, Chicago (2) to. U. F. Bodin, Kverett to. P, J, Griffin, So. San Fran. to. 2. Z. Kaofarlun, Ft. Madison to. J. D. Shiela, Wilm. D-80S8 (3) to. J. P. miott, Wllm. 0-8026 to. T. 3. Chilton, V/ilm. 0-8005 Dr. A. Z. Heiimar, Phlla. Plant (4) to. D. V* Gregory, Phlla. Plant to. C. E. Stover, Phlla. Plant Hr. II, E. Grubb, Phlla. Plant to. C. R. ti. Herklo, Lab. (2) to. J. Iliff, Lab. ' to. IS. C* Fitzgerald, Lab. Phlla, Label Section Philadelphia Laboratory August 10, 1948 m. A, K. BURKE DIRECTOR OF PRODUCTION ROOM D-0022, WILMINGTON TECHNICAL SUPPLEMENT . . PHILADELPHIA- LABORATORY RELEASE LETTER NO. 1110 BKCQKBHNDATION FOR RELEASE OF LEAD-FREE OUTSIDE iVHITE 301-867 Composition: This product has the same vehicle as 301-863 which contains 35# refined soya oil in total oil, 15# bodied linseed oil and 50# raw llnsoed oil. The grade of zino oxide is Azo ZZZ-11, whloh is of the acicular variety. It has been found necessary to use a special extender with low oil requirements. This extender, Asbsstine-I, hoc been proposed for house paint tints in Release Letter 1059-A. In order to obtain satisfactory gloss, it became necessary to reduce the pigment volume to 32# os compared to 35# in the present #40 outside White. There may be a alight increase in dirt collection because of the lower pigment volume but we beliove the difference will be negligible. Studies of ZZZ-11 leed-free paints on houses and on the test fenoe have proved to have satisfactory durability. In one series of house testa, a white very close to this formula was Included and showed life up to 7 years. LMW 0010023 N50752 -2- Manufacturing; i robiems: One plant batch has been mode on this formula, i-301E-24100, and Its properties are considered satisfactory. Haw Material: The product requires the following amounts of pigments: W-3 TIOg Y.C.R. v;-c TiOa T V.'-GO ZZZ-11 Z;lno Oxide W-58 Asbestino-X .43 /gal. 1.45 ft 2.90 n 4.00 it Thin represents an increase of .2 ///gel. of TiOo compared to the present 40 Outside White. Avallability of ZZ5-11 zinc oxide for this product should be investigated by the Vforko Supply Department. The re quirements for this product will be in addition to those for House Faint Tints which are estimated at 105,000 /month. ' IT-50, Asbc3tina-X will also be required for House Faint Tints. Requirements for tints is expected to be 145,000 /month end requirements for this product will be in addition to this amount. Substitutes for Yf-50 are now under investigation with n viev? to developing sufficient supply for full production of Outside 'White on this basis by the time this product is ready for full release. Simplification: This product will not replace any existing formula at this time; it requires one newmill base, Eventually it will roplaoe 301-864 and 501-062. It will require two new pigments which will also be used in House Faint Tints. JH0:hfm FillLA DliLFHEA LABORATORY CLt&r- "j. E. OYLER LMW 0010024 DUP110145205