Zinc Chromate Primer is a compound which physically appears as a yellowish green colour solvent which is added with a pigment and number of additives. It is widely used in industrial painting as a protective coating over materials like iron or aluminium to act as a corrosion-resistant agent and ensures a longer service life to the machine and automotive components. Zinc Chromate Prime has a chemical formula of ZnCrO4 and a molar mass approximately equals to 181.403 grams per mol. It has a density of 3.43 grams per cubic centimetre and is insoluble in water.
Features of Zinc Chromate Primer
Technical Specification of Zinc Chromate Primer
Color | Yellowish Green |
Gloss | Matt |
Volume solid | 45 %(approx). |
Recommended DFT / coat | 30 - 35mµ |
Drying time at 30°C | Surface dry : 30 minutes |
Hard dry : 8 hours | |
Shelf life (cool & dry place) | 12 months(min) |
Flash point | <30°C |
Surface Preparation & Substrate Condition
Mixing
If settling is observed in the drum, loosen the settled material with the help of hand stirrer followed by power driven stirrer for quick homogenous mixing.
Application of Zinc Chromate Primer
Brush / Roller | |
Recommended thinner | WA Thinner No. 7 |
Volume of thinner | 0 - 10 % |
Air spray | |
Recommended thinner | WA Thinner No. 7. |
Volume of thinner | 5 - 20 % |
Nozzle orifice | 1.5 - 3.0 mm |
Nozzle pressure | 0.3 - 0.4 Mpas |
Airless spray | |
Recommended thinner | WA Thinner No. 7. |
Volume of thinner | 5 - 15 % |
Nozzle orifice | 0.38 - 0.46 mm |
Nozzle pressure | 10 – 13 MPas |
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