Document YGO8jB97aZk8K1M7g0xwNKnNN

Technical Department Bulletin NUMBER I 2575 DATE APRIL 3, 1961 SUBJECTS P&L MULTIPURPOSE TINTING COLORS GREEN LIGHT, GREEN MEDIUM AND GREEN DARK PILE! M-F-M-26 SUPP. 2 GOODS! SEE BELOW (U.S. & CANADA) Revised formulas for the above items were adopted at the Managers* Meeting heId'March""22-23, 196li" The code designations of the revised and prior formulas are listed below: Green Light, CA1Sk-t replaces C154Green Medium, <JAT55>I replaces Cl55 Green Dark, CA1F6, replaces Cl56 Hie revised materials will be Identified by stars Imprinted on either side of the color name on quart and half pint labels. Tubes will not be starred# The original formulas for these three greens contained pigment mixtures of lead chromate and phthalocyanlne blpe# This pigment combination was selected in order that the mass tones and tint colors would match those of P&L Oil Colons Chrome Green Light, Medium and Dark. The P&L Multipurpose Tinting Colors in the corresponding green colors have these disadvantages! (1) They contain lead# (2) They are not alkali resistant and they cannot be used to tint exterior masonry paint# (3) They "take** differently in water-thinned points than they do In oil or alkyd paints. Vapex Plat Wall Finish, for example^' tints to bluer grpens than New Lyt-all Flowing Flat and the colorp do not exactly match the let-down chips shown pn the color card. The revised formulas for"P&L Multipurpose Tinting Colors Green Light, Medium and Dark contain pigment mixtures of iron oxide, phthalocyanlne green and. In the case of the two darker colors, drop black. The colorants are therefore free from lead pigments and are alkali resistant." They may be used in exterior paints, including "/masonry paints. They "have excellent light fastness (when used to tint exterior products) and they also have excellent acid resistance. The mass tones of the three revised greens are darkey and bronzier than the original formulas; the tint colors are ft trace cleaner, or yellower. The tinting strengths of the revised 0007-PTL-000745 NUMBERS 2575 Pratt & Lambert-Inc. Technical Department Bulletin FILES M-F-M-26 SUPP. 2 - 2- greens are the same, or slightly weaker, than those of the original formulas. The differences in tint color and tinting strength are so slight that no tinting difficulties are ex pected at the professional level. W. H. LUTZ f 0007-PTL-000746