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|CHEMICAL CALSS:||Zn3(PO4)2•2H2O||HS CODE:||28352990|
|APPEARANCE:||WHITE POWDER||CLASSIFICATION:||ZINC PHOSPHATE|
zinc and phosphoric acid,
water based pigment
CAS No 7779-90-0 zinc phosphate powder industrial grade 99.7% Anti-corrosion Pigment
SUPERFINE LEVEL ZINC PHOSPHATE
PRODUCT NAME: Zinc phosphate
PRODUCT TYPE: Anti-corrosion Pigment
PRODUCT APPREANCE: White powder
PRODUCT APPLICATION: Zinc phosphate helps the formation of passivation layer on the metal surface to be protected. Material for anti-corrosion paint used in container, ship and steel structures. Also for electronic materials.
TEST ITEM REQUIREMENT
Whiteness % 80-90
Zn % 45 Min
PO4 % 20-30
Moisture % 1.0 Max
Oil absorption ml/100g 25-35
The PH Value 6-8
Residue on sieve (1250mesh) % 0.5 Max
Mean Particle Size μm 13-15
STANDARD PACKAGING 25kg/bag, Plastic-lined woven bag or Composite paper bag
TRANSPORT AND STORAGE
Protect against weathering. Store in a dry place and avoid extreme fluctuations intemperature. Special conditions for opened packaging: Close bags after use to prevent the absorption of moisture and contamination.
Zinc Phosphate is compatible with a wide variety of media including alkyds epoxy esters, chlorinated rubber, polyurethane etc
• CORROSION RESISTANCE
The Pigment also physically prevents passage of water and salts. Thus the corrosion resistance is a major characteristic of Zinc Phosphate.
Good brushing characteristics can be obtained with Zinc Phosphate Primers, which are suitable for both airless and conventional spray application. None of these methods entails a health hazard.
Zinc Phosphate has the advantage of non toxic nature over other Corrosion Resistant Pigments much as Zinc Chromate, Zinc Tetroxy Chromate and Barium Chromate.
EXCELLENT INTER-COAT ADHESION
The use of Zinc Phosphate in Primers promotes excellent inter-coat adhesion, particularly under conditions of high humidity.
Application of zinc phosphate
Zinc epoxy phosphate primer, also known as zinc epoxy phosphate anti-rust paint and zinc epoxy phosphate anti-corrosion paint, is a two-component coating, including main paint and curing agent, used for anti-rust coating of steel structure and mechanical equipment.Epoxy zinc phosphate primer has good adhesion, excellent compatibility, and strong mechanical properties.The coating contains high quality zinc phosphate antirust pigment, and has strong ability to resist rust and corrosion of steel. It can be matched with polyurethane paint, epoxy paint, fluorocarbon paint and acrylic paint.
Antirust mechanism of zinc phosphate epoxy primer
, zinc phosphate is itself a hydrate has the ability of forming alkali type complex, its form attached with the metal surface and Fe2 + strong complex Fe [Zn3 (PO4) 3] precipitation layer and inhibition of anode reaction, at the same time with the hydroxyl and carboxyl ligand in the paint, production stable cross-linking coordination compound, the pigment - forming chemical bond between coating and substrate, thereby enhancing film adhesion and resistance to permeability.
Epoxy zinc phosphate primer is applicable to anticorrosive coating of steel structure, machinery, equipment, engineering facilities, pipes, storage tanks, etc. in atmospheric environment.Epoxy zinc phosphate primer is not suitable to be used alone, and can be matched with a variety of anticorrosive paint to achieve the best protective effect.
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