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Paints and Coatings

?Zinc oxide is used in both water and solvent based formulations. It can be used as a pigment as well as an excellent brightener.
?Zinc oxide is an additive which absorbs UV rays to extend color retention.
?Finally zinc oxide is an excellent inhibitor of fungi, mildew and mold.

Standard: 
GB/T3185-92
 Item Index
 Model Top garde First grade Qualified product
 Zinc oxide(as Zno)%,≥ 99.7 99.5 99.4
 Metals (as Zn)%,≤ No No 0.008
 Lead oxide(as Pb)%,≤ 0.037 0.05 0.14
 Residue on sieve(45um)%,≤ 0.10 0.15 0.20
 Volatile matter on 105℃%,≤ 0.3 0.4 0.5
 Water soluble matter%,≤ 0.10 0.10 0.15
 Oil absorption g/mg 14 14 14
 Color (compared with the standard sample) Similar Slight yellow Slight yellow
 Reducing power(compare with the  standard samples) ≥ 100 95 90

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