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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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