Our K-WHITE products are pollution-free, anti-corrosive white pigments that, unlike most conventional anti-corrosive pigments, contain no chromium or lead. With today’s increased awareness of the environment, our K-WHITE products are ideal replacements for conventional anti-corrosive pigments.
Anti-corrosive pigments are used in a broad range of fields, and K-WHITE is available in several product variations, including both solvent types and water-based types. Please ask us about the product grade most suitable for a specific base material, such as iron, aluminum, zinc, or others.
Description: Aluminum triphosphate(AlH2P3O10・2H2O) is a white powder slightly soluble in water characterized by a laminar structure composed of crystal platelets. The controlled release of the tripolyphosphate ion from aluminum triphosphate forms an excellent protective film over the surface of iron and/or zinc metal substrates. This film exhibits excellent corrosion inhibition. The aluminum triphosphate contains two molecules of water of crystallization, which will be released around 105℃ and become an anhydrous compound with a reversible hydration reaction.
A Silica and Magnesium compound is specially designed to change the pH of oxygen in water, which penetrates the coating film, to an alkalinity at which the zinc ion(Zn2+) is hard to dissolve. This compound sequesters the dissolution of the zinc ion on the metal surface at the initial onset of corrosion. At the anodic side, the silicate ion (SiO44-) bonds with the zinc ion(Zn2+) to form a zinc silicate film and at the cathodic side magnesium ion(Mg2+) bonds with the hydroxy ion(OH-) to give a magnesium hydroxide film. These passivation films, formed together on the metal surface impart excellent anticorrosive performance.
Applications: Electrodeposition coatings, Coil coatings, Automobile parts coatings, General Industrial coatings, Architectural coatings, Powder coatings, Heavy-duty coatings, Wash primer, etc.
Resin Systems: Solvent based, Water based, Power coatings
Substrates: Steel, Zinc galvanized steel, Aluminum, Magnesium alloy
Packing: Please contact us
Specification: TDS; please contact us
Safety Information: SDS; please contact us
