Polyurethane primer
This paint is two-component. Component A is formulated from short-oil alkyd resin as the base material, mixed with various pigments, fillers, additives, and solvents; Component B is a curing agent, prepared proportionally before use.
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Product Description
Various colors of polyurethane primer
This paint is a two-component system. Component A is formulated from short oil alkyd resin as the base material, mixed with various pigments, fillers, additives, and solvents; Component B is a curing agent, prepared according to the ratio at the time of use.
Performance
This paint has excellent physical and mechanical properties, corrosion resistance, strong adhesion, high hardness, good acid, alkali, and salt spray resistance.
Usage
Used as an anti-corrosion coating for steel structures such as bridges and oil tanks.
Technical Specifications
| Item | Index | |
| Film color and appearance | Conforms to standard and its color difference range | |
| Viscosity (Paint-4 cup) 25℃ S | 80-120 | |
| Surface dry h (25℃) | ≤ | 4 |
| Hard dry h (25℃) | ≤ | 24 |
| Full cure d (25℃) | 7 | |
| Fineness μm | ≤ | 20 |
| Adhesion level | 2 | |
| Impact strength kg/cm | ≥ | 50 |
| Elasticity mm | ≤ | 1 |
| Hardness | ≥ | 0.5 |
| Water resistance (in distilled water) 24h | No change | |
| Acid resistance (H 2S04 5%) 14h | No change | |
| Alcohol resistance (50% ethanol solution) 5h | No change | |
Application Reference
1. This paint can be applied by brushing, spraying, or high-pressure airless spraying.
2. Mixing ratio: Component A:Component B = 6:1. Mixing method: Stir the paint evenly after opening the drum, add the curing agent according to the specified ratio, mix and stir evenly, then let it mature for 15-20 minutes before use. Prepare only the amount needed for immediate use, and the prepared paint should be used within 4 hours. When applying to a puttied surface, the putty layer must be completely dry, otherwise, it will affect the quality. The surface temperature of the substrate should be 3℃ above the dew point.
3. It is strictly forbidden to mix water, alcohol, acid, alkali, or other substances into this paint.
4. Any remaining curing agent must be properly stored, tightly sealed, to prevent water seepage, air leakage, and subsequent gelling or deterioration.
5. This product is flammable. When storing, it should be placed in a cool, ventilated, dry place, protected from direct sunlight, isolated from fire sources, and away from heat sources in the warehouse. During transportation, it should be protected from rain and sun exposure, collisions should be avoided, and it should comply with relevant regulations of the transportation department.
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