Document gbEyv4Qp5bm67mvK0vowndr53

Paint Research June, 3,949 -SO- #86 - headed Z Panels 13740-56 CS and F Her prepared for exposure south vertical Chicago and Florida. The purpose of this series is to compare the tint retention of OTP formulas containing basic carbonate white lead against no basic carbonate and substituting basic silicate white lead plus 4X4 leaded zind for the 412 leaded sine and basic carbonate con tained in the base formula, in the JLast group 414 is substituted on an equal sine oxide poundage and the basic silicate on an equal volume basis. The following tints were prepared, with tinting colors shown: lex 459 BerHLey fallow - ffi 40, ST 10, CB 7063 Bex 465 Colonial fellow -Hf 40, BO 1, CB 7063 lex 474 Chelsea Gray - GB 7063, BT 40 Rex 478 Geneva Cream - HI 40, ffi 10, BO 4 Rex 496 Ivory - El 20, HC 1, BO 4, BT 40 One SWP above tints using cards. These are chrome colors and ferrite tinting co h no basic carbonate has bear shaded to each of the shading bases which are shown on the formula A series. The regular bases used include several included for a comparison between chrome and s. CONFIDENTIAL N39112