Document kB1DKGJ8z54a96o5ZLnOYD9J

Return to ...... " * ' _ Agenda 'Ho Author's Name Adorns RECEIVED n !0V7 1956 THE SHUMIN WllLIAMS LAB, WRU ^e c e /v e o OZLO 18H H3NOBASIC LEADED ZINC COCXDE in House Faint rHF*u0V7 195s SHt/ftVW WU/M MB LVRU The SharMin-Willlawa Co. PP+L 2nd Aramal Sympoaiura November L9$6 Cleveland, Ohio Abstractt After over four years of extensive tacts in houoa paints, Oslo 18M shown in every respect conparablo durability to Oslo 35 when used It# for 5#, making up the deficiency of bulk by the use of added extender. Ozlo IBM shows very slightly better tint retention than Ozlo 35* This *ra attribute to a reduction in the colloidal fines. Furthermore, laboratory results show that this reduction in colloidal fines permits opening the mill slightly to obtain the sane grind. Extensive tests, covering all type3 of zinc oxides, leaded sine oxides, mixtures of zinc oxides and basic sulfate white lead, or basic silicate white lead at oil levels from 3 3/h to 5# per gallon And zinc levels from 1.63 to 2,?3# par gallon at three exposure locations Chicago, Kansas and Florida - show that the Ozlo IBM and Ozlo 35 impart greater mildew resistance to the paint than any other basic pigments. Furthermore, Ozlo IBM and Ozlo 35 show a greater factor of safety at lower zinc levels in resisting mildew than any other active pigment or pigments. Calculations based on over 150 different commercial house paint formulas show that by the use of Ozlo IBM from 12 to IB cents per gallon can be saved without affecting the performance of the paint. & 0007-SKTP-043324 N23185