Non Yellowing and Anti-aging Aliphatic Polyurethane Topcoat EX-940
EX-940 aliphatic polyurethane topcoat is a two-component UV resistant and environmentally friendly special high-strength weather resistant decorative topcoat. EX-940 topcoat can withstand long-term exposure to ultraviolet radiation without yellowing or aging, and is a topcoat product that integrates anti-corrosion, waterproof, weather resistant, and decorative functions.
- The coating has bright and bright colors, UV resistance, and excellent color stability;
- Excellent physical properties, high tensile strength and fracture elongation, high adhesion;
- Chemical stability, able to withstand acid, alkali, and salt spray;
- Convenient construction and excellent coating performance;
- No pollution to the environment.
- High end building painting;
- Weather resistant protective coating for highway and railway facilities, bridges, tunnels, and bridge towers;
- Anti corrosion, waterproof and weather resistant topcoat for ships, vehicles and mechanical equipment;
- Aromatic polyurea protective coating surface weather resistant topcoat.
| Test Item | Test Result |
|---|---|
| Solid Content | ≥ 60% |
| Fineness/μm | ≤ 50 |
| Tensile Strength | ≥ 4 MPa |
| Elongation | ≥ 200% |
| Curing time/(25 ℃, RH＝60％,h) | Tack Free Time ≤ 4h, Actual Dry Time ≤ 24h |
| Bending performance/(ø 10mm bending) | Verification at ≤ -30 ℃, no cracking or peeling |
| Impact resistance/(drop hammer height 100cm) | The paint film has no cracks, wrinkles, peeling or other phenomena |
| Adhesion/(metal substrate, pull-out method, MPa) | ≥ 2.5 |
| Alkali Resistance/(NaOH, 5%, 240h) | 240h,The coating has no bubbles or wrinkles Discoloration, detachment, and other phenomena |
| Acid Resistance/(H2SO4, 5%, 240h) | |
| Salt Tolerance/(NaCl, 3%, 240h) | |
| Oil Resistance/(engine oil, 240h) | |
| Water Resistance/48 hours | The coating has no bubbles, wrinkles, obvious discoloration, or peeling |
| Artificial Climate Acceleration Test | After 1500 hours, the coating showed no obvious discoloration or powdering, no bubbles, and no cracks |
- 1. Substrate treatment, the surface of the substrate should be clean, dry, free of dust, oil stains, and rust;
- 2. Strictly follow the proportion specified in the product manual to mix and stir evenly, and brush coating, spray coating or roller coating can be used;
- 3. It is recommended that the coating thickness be between 60-80 microns;
- 4. The specific construction details depend on the specific construction environment.
A: 100kgs/drum, B: 50 kgs/drum or according to customer's requirement.
This product should be stored in a cool, ventilated, and dry warehouse. It is strictly prohibited to be exposed to rain, sun, isolated from fire sources, and kept away from heat sources. The storage temperature should be between 15-40°C.
This product has a storage period of 12 months from the date of production without opening the original packaging. If it exceeds the storage period, it can be inspected according to the items specified in this product standard. If it meets the technical requirements, it can still be used.
This product does not contain organic solvents and can be transported as non hazardous materials during transportation. During transportation, rain and sun exposure should be strictly prohibited, and relevant regulations of the transportation department should be followed.
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