Introduction
PVF steel drum coating is mainly used for packaging containers of chemical pesticide products, inner walls of cans and other special anti-corrosion fields.
PVF coating characteristics:
(PVF) coating is the abbreviation of polyvinyl fluoride (Polyvinyl Pluoride). The coating is made by grinding and processing with high molecular resin. It has many common characteristics of carbon-fluorine materials and has unique weather resistance.
(PVF) fluorine coating belongs to crystalline polymers. It is insoluble in solvents at room temperature. It can only be made into organic solvent dispersions with the help of additives and needs high-temperature baking to form a film. Therefore, it is found that it can only be wiped off by using solvents before high-temperature baking before film formation. After film formation, it is insoluble in solvents.
Main characteristics of the coating:
1. Corrosion resistance. It has excellent anti-corrosion performance for various oils, alcohols, ketones, esters, salts, alkalis, dilute acids and other chemical pesticide products. At present, it has been tested that it can contain more than 100 kinds of chemical products.
2. Outstanding weather resistance, heat resistance and low temperature resistance, long-term use temperature is -70~110℃
3. It has anti-humidity, anti-mildew and anti-salt spray performance.
4. The coating has good flexibility, resistance to disassembly, wear resistance and impact resistance.
PVF coating quality indicators:
| Appearance: | Different colors of thin paste dispersion |
|---|---|
| Viscosity (25℃), Pa. s: | ≥0.17 |
| Density, kg/d㎡: | 1.23～1.26 |
| Fineness, um | ≤60 |
| Solid content, % (weight ratio) | ≥24.0 |
