Zinc Phosphates are available in a wide range of coating weights and crystal sizes. Depending on the type of crystal structure these coatings find the following uses: base for paint adhesion, corrosion resistance coating and an aid to cold forming.
Phosphate Coatings: Zinc Phosphate
||A calcium modified zinc phosphate for iron and steel. Separate accelerator is not required. Spray or immersion Five Stage, 2-6% by volume, 160 - 185°F. Coating weight: 300-900 mg/ft2. Specification: TTC-490-D, Type V. Micro crystalline zinc phosphate used on iron or steel to produce a paint base coating that is resistant to undercutting corrosion. Also used with Metal Guard® top coats as a corrosion resistant coating. Can be used over Mi-Phos™ Black to product a fine grain black phosphate.|
||Medium/heavy weight zinc phosphate for iron and steel. Spray or immersion. 2-5% by volume, 180 - 200°F. Coating weight: 1500-2500 mg/ft2. Specifications: TT-C-490-D, DOD-P-16232F Type Z, Mil P-50002B Type Z. Medium heavy zinc phosphate for corrosion resistance. Excellent when used over Mi-Phos™ Black Predip to produce heavy black zinc phosphate.|
||A two-component liquid formulation used as a predip, prior to applying a zinc or manganese phosphate coating on steel. The black color is formed as part of the phosphate coating and will not rub off. Concentration: 6 to 12% by volume in water. Temperature: Ambient|