| Product composition | A two-component primer for non-ferrous metals is made by grinding epoxy resin, zinc containing color, coupling agent, and bulk material, adding special additives, organic solvents, and curing agents |
| Product Features | Good adhesion between galvanized sheet metal, aluminum alloy sheet metal, zinc sheet and non-ferrous metals, tough paint film, good water resistance and salt water resistance |
| scope of application | Used as a protective primer for indoor and outdoor non-ferrous metals (such as aluminum alloys and galvanized sheets), suitable for industrial plants and commercial buildings constructed with billboards and galvanized sheets, hardware constructed with aluminum alloys, industrial machinery components, and building profiles for protective coating |
| Physical parameters | Non volatile matter content (curing agent) - ≥ 40% |
| Hardness (pendulum method) ---- ≥ 0.5 |
| Salt water resistance - (immersed in 3% NaCl for 24 hours) without foaming, rusting, or peeling |
| Fineness (scraper left) ------- ≤ 40 µ m |
| Color and appearance - Zinc yellow, smooth paint film |
| Adhesion (circle drawing method) ------- ≤ Level 2 |
| Drying time - surface drying ≤ 4h; actual drying ≤ 24h |
| Construction reference | 1. Surface treatment: Sandblasting and shot blasting to remove oxide scale, rust, and oil stains, reaching Sa2.5 or St3 levels |
| 2. Substrate temperature: 3 ℃ above dew point |
| 3. Coating methods: Brushing, rolling, spraying, high-pressure airless spraying |
| 4. Diluent: Adjust the epoxy paint diluent to the appropriate viscosity for use |
| 5. Coating thickness: Mix evenly according to the proportion of A and B, cure for 20 minutes before construction, apply 1-2 coats, dry film thickness 20-40um |
| 7. Re coating interval time: about 12 hours at 25 ℃ |
| 8. Rear supporting paint: nitro enamel, acrylic enamel, polyurethane enamel |
| safety rules | The construction site should have good ventilation facilities |
| Construction personnel should wear protective equipment such as masks, glasses, gloves, etc. to avoid skin contact and inhalation of paint mist and solvents |
| Smoking is strictly prohibited on the construction site, and all sources of fire must be isolated |
| Storage period | Sealed storage in a cool and dry place, with a shelf life of 12 months. If it exceeds the shelf life and passes inspection, it can still be used |
