Document 3JJE0Na3mzYJx0kVpK2JYKnYO

WHITE PRIME COATS Improve paint systems The test panels show how, after one year's exposure to Long Island's erratic weather conditions, the system with the whitelead-base primer has maintained its film integrity and adhesion and that the finish coat formulation is not as suitable as a primer. No stronger or more convincing argument can be given for using white lead pigment in your primer formulations; and certainly, no customer could ask for better proof of the pro tection of white lead primers in his house paint systems. For information on the most effective use of "lead" in your paints, write for "White Lead in Mixed Pigment House Paints," and "White Lead Technical Bulletin #1." Lead Industries Asso ciation, 420 Lexington Avenue, Sew York 17, Sew York. In this comparative weathering test, a commercial, lead-base, finish paint, was applied, self-primed, to a cedar panel (right). The panel on the left has a topcoat of the same finish paint but it has been applied over a typical, white lead-base, multiple pigment primer. On both panels the edges were thoroughly sealed with two coats of L.I.A. primer P-4. Cross grain saw cuts were subsequently made two inches into the panels from one edge. The panels were then exposed 45 deg. south vertical at Sayville, Long Island, New York. .~ - -v It @167- Finish Paint on Primer Base (MAGNIFICATION 4X1 Seif Primed Finish Paint The photographs show the font cracking effect moisture has on the self primed bouse paint system as compared to the protection giten by white lead base paint, formulated as a primer. " "LEAD" LENGTHENS THE LIFE OF PAINT BECAUSE: 1* Stabilizes .. . neutralizes acidic compounds resulting from decomposition of the vehicle -- prc\ ents the film from becoming soft or liquefying. 11 Plasticizes . . . forms lead soaps which increase film flexibility.' ; . .--1.'.. It Strengthens . . . mechanically reinforces the film, increasing its elastic strength'with flexible, spiny lead- soap particles. . ' , .. ,y..' , ' fri+'.e - It Resists Water . . . reduces water sorption to a small fraction of that of lead-free paints. It limits Oil Penetration . . . holds more of the vehicle in the film where it. is needed; less in the substrata. It Prevents Chalking and Inhibit* Mildew paint took better, longer. <_ makes UA PRIMER f-4*__________ _____ ____ Pigmentation (64.1%) Per Cent to./loo 90L White lead Rutile Non-Chalking Titonium Dioxide Magnesium Silicate litherge Total Vhi<l (35.9%) 4*4 13-1 33.4 1.0 100.0 Per Cent 473 148 343 10 Raw linseed 0*1 VM1767** . VM1&93*** Blown United Oil (Z-2) Mineral Spirits Total 34.0 71.0 10.3 3.0 0.5 79.0 100.0 1*7 113 58 17 3 180 1514 PVC-39.4% FINISH PAINT Pigmentation (63.1%) Per Cent White Leod Zinc Oxide Anotose Titanium Dioxide Mognesium Silicate Total V.hicU (36.9%) 33.0 30.0 15.0 20.0 100.0 Per Cent Refined Unseed OH Bodied Unseed Oil (Z-2) Mineral Spirits Driers Total PVC=33% 80.0 13.0 22.0 3.0 100.0 lb.; 100 gal. 336 290 145 191 336 84 124 16 1522 * formula from '"While lead Technical Bufirtie *!."* *"60 parts linseed oil; 40 port* dehydrated castor o*l. bodied to obtain a viscosity of V. Gardner 70% solids in mineral spirits. _ -. "**5 gal. length, low odd number ester gun ccoked with dehydrated castor oil. Viscosity is B-C Gardner at 59% solids. ' This advertisement or version thereof appears in the following publications: American Paint Journal. June 2: Pamt. Oil & Chemical Review, June 22: Official Digest, June; Western paint Review, June; Paint & Varnish Production, June. ( ^ c.