Composition
HL52-2 Epoxy Asphalt Anti-corrosion Coating is a two-component paint made from epoxy resin, coal tar pitch, pigments, fillers, solvents, and hardeners.
Performance
The coating is hard, wear-resistant, has good adhesion to the substrate, excellent water resistance, antimicrobial, and offers good chemical resistance as well as certain insulating properties.
Application Scope
HL52-2 Epoxy Asphalt Coating boasts excellent corrosion resistance, and is moisture, water, saltwater, soil, and microbial resistant. It also offers certain insulating properties and can be widely used for corrosion protection on various equipment and facilities:
Corrosion protection for oil, gas, and water pipeline external walls.
Corrosion protection for wastewater treatment pond.
Coal mine shaft frame anti-corrosion.
Corrosion protection for steel and concrete structures' surfaces. However, equipment exposed to sunlight is not recommended.
Corrosion-resistant for steel in severely alkaline and saline soil.
Corrosion prevention for underwater parts of ports, docks, marine facilities, and ship's holds.
Construction Method
1. Paint mixing
1.1 This product is a two-component paint, consisting of Component A and Component B. Before use, please mix each component separately and thoroughly.
1.2 Ratio
Component A: Component B = 1:1
1.3 Be sure to accurately weigh the ingredients and mix them immediately after blending. After thorough mixing, let the mixture mature for 15-30 minutes. It's ready for use after maturation, and extend the maturation time appropriately in cold winter temperatures. Use the mixed material within 2 hours to prevent thickening and solidification, which can lead to loss.
1.4 This paint is suitable for application above 5°C; curing and cross-linking will be slower at lower temperatures.
2 Painting Methods
2.1 Surface Treatment: Steel surface is treated by shot blasting or sandblasting to achieve Sa2.5 grade, or manually and with power tools to reach St3 grade.
2.2 Coating Methods: Brush painting, high-pressure airless spraying, etc., can be used.
2.3 Clean the tube surface promptly and apply the primer, followed by the topcoat or wrap with glass cloth. Wrap spirally, ensuring the glass cloth is tight with no creases or gaps, overlap 20mm, and continue layer by layer until meeting the design specifications. The wrapping direction of the glass cloth should be opposite to the previous layer to enhance the tightness of the entire coating. The surface should be smooth and shiny with the mesh of the topcoat covering the glass cloth.
2.4 HL52-2 Epoxy Asphalt Paint is a two-component coating, which generally cannot be arbitrarily added with thinner during use.
Technical Specifications
| Color: | Brown with sheen |
| Drying Time (25°C) | Surface dry ≤ 4; Through dry ≤ 48 |
| Adhesion (Circular Scratch Method): | l~2 |
| Tensile Flexibility (mm): | l～2 |
| Solid Content (%): | >70 |
| Usage Amount (g/m²): | Every 200-250 coats |
Safety Precautions
Construction site, no open flames allowed. Ensure good ventilation when working in sealed containers, and construction workers must wear protective masks. Do not perform welding on joints that have just been completed and are still hot. After construction is finished, clean tools with a solvent.
Packaging and Storage
HL52-2 Epoxy Asphalt Paint, both A and B components are packed in 20Kg iron drums.
This paint is flammable; storage warehouses must be well-ventilated and kept away from open flames and direct sunlight.
This coating is valid for one year from the date of manufacture. After one year, as long as it passes inspection, it may still be used.
