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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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