309 Zinc chromate
Product name：309 Zinc chromate
Paint the index number：P.Y36
Molecular formula：5ZnO.CrO3.4H2O
Product properties：Slightly soluble in water, strong acid or alkali to meet can decompose.
The main characteristics：Has good anti-corrosion properties.
Application scope：Can be used for alkyd primer and phenolic primer, high-chprimer, epoxy resin primer, polyurethane primers, etc. Mainly used for phosphating primer, its high content of zinc salt can participate in phosphoric acid and poly(vinyl alcohol) shrink the reaction of butyl aldehyde, by the formation of the complex can be a very good passivation metal surface, improve its adhesion. Can also be used in light metals of the aviation equipment to surface treatment, it is a good light metals antirust pigment.
Attention：This product should be avoided mixed use with a acid alkaline or reducing substances. Before using this product, should go to the test, to ensure that our products can meet the requirements of your company.
This product in transportation, storage process, should avoid contact with water.
109 Zinc chromate technology index
|
Project |
Index |
|
appearance |
Yellow powder |
|
105℃ volatiles % |
≤ 1.0 |
|
CrO3 % |
≥ 17.0 |
|
Zinc oxide % |
68.5-72.0 |
|
Chloride |
≤ 0.1 |
|
Oil absorption g/100g |
≤ 40.0 |