Water-based epoxy zinc-rich primer
This paint consists of three components: Component A is the paint base; Component B is the water-based epoxy hardener; Component C is zinc powder.
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Product Description
Waterborne Epoxy Zinc-Rich Primer
This paint consists of three components: Component A is the paint base; Component B is the waterborne epoxy curing agent; Component C is zinc powder.
Features
Possesses cathodic protection, excellent rust resistance, superior electrical properties, extremely low VOC, good oil resistance, water resistance, and salt spray resistance.
Uses
Suitable for anticorrosive primer for steel structures such as gas tanks, underground pipelines, chemical equipment, and engineering buildings.
Technical Indicators
| Item | Indicator | |
| Drying Time | 23±2℃ | |
| Surface dry h | ≤ | 4 |
| Hard dry h |
≤ | 24 |
| Full cure d | ≤ | 7 |
| Impact resistance kg/cm | 50 | |
| Flexibility mm | 2 | |
| Adhesion level | 1 | |
Construction Reference
1. Steel surface should be sandblasted or shot blasted to Sa2.5 grade, and construction can only proceed when the surface temperature is 3℃ higher than the dew point.
2. Mix the three components in a ratio of A:B:C=1:2:7 and stir well before application. Use within 2 hours after mixing; prepare only what is needed to avoid waste.
3. Stir frequently during application to prevent zinc powder precipitation, which can cause an imbalance in the solid-liquid ratio and affect the paint film quality.
4. The construction environment temperature should preferably be above 10℃, and the relative humidity below 80%.
5. Under normal environmental temperature (23±2℃) and humidity (60±5%) conditions, a second coat can be applied after 24 hours. Users can arrange the recoating interval based on the actual drying condition of the coating.
6. Tools and equipment can be cleaned with water after construction.
7. To ensure the anti-corrosion effect of the coating, it is recommended that the dry film thickness be 80-100 micrometers.
8. Compatible products can include waterborne epoxy, waterborne acrylic, waterborne polyester paints, or compatible solvent-based coatings. However, the topcoat must be applied only after the primer is completely dry.
Storage and Transportation
Store in a dry and cool place, at a temperature of 0-30℃ and humidity of 50-80%. Components A and B have a shelf life of six months, and component C for one year. Transportation should comply with relevant regulations of the transport department.
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