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|oxide content||ZnO68.0-70.0%Chromate content as CrO317.0-19.0% Min.Water soluble Chloride|
Zinc Tetroxy Chromate is an Anti-Corrosive Pigment used to manufacture Anti- Corrosive Primer Paint Systems.It is yellow in colour. Primers based on this pigment impart very good bonding properties to subsequent Coats. As compared to Zinc Yellow, Zinc Tetroxy Chromate is reactive to a lesser extent with acidic vehicles.
This is a specialized pigment and is meant for use in Wash/Etch Primer coatings which offer excellent adhesion to paint systems on non-ferrous metals like tin, aluminium and galvanized iron substrates.
These Products are used in the manufacture of Synthetic enamels and is highly recommended for Epoxy primers, Marine coating, Unicoat coating, Eatch Primers, Coil coating etc.
FormulaZnCrO4.4 Zn(OH)2Colour Index No77956C. I. Pigment NoPigment yellow 36:1Self ColourClose match to standardZinc oxide content as ZnO68.0-70.0%Chromate content as CrO317.0-19.0% Min.Water soluble Chloride as ClMax. 0.1 %Water soluble sulphate So4Max. 0.1 %VolatilesMax. 1.0 %Dispersion on H. G.6.5 to 7.00Residue on 240 mesh sieveMax. 1.0 %pH of 10 % aqueous solution6 to 8% Moisture contentMax. 0.5%