UV Conformal Coating Liquid JC-UV89
UV Conformal Coating Liquid JC-UV89 is a single-component UV and moisture-curing coating that forms a clear protective film on PCBs against moisture, dust, salt mist and chemicals. It works from −50 °C to 160 °C and is UL certified (E516495) for flame retardancy. Part of our IBond range in Adhesives & Fluids.
Product overview UV89 Conformal Coating Liquid
UV89 is a single-component UV and moisture-curable conformal coating designed to protect electronic circuit boards. It forms a clear transparent film after curing, providing excellent protection against moisture, dust, salt mist, and chemical corrosion. The coating features excellent dielectric strength, heat resistance, moisture resistance, vibration resistance, and corrosion resistance, making it ideal for a wide range of industrial applications.
Key Features and Technologies
- Excellent temperature resistance: Withstands high temperatures up to 160°C and low temperatures down to –50°C.
- Flame retardancy: UV89 possesses vertical flame-retardant properties and is UL-certified (E516495).
- Electrical performance: Passed the UL high-temperature aging test at 140°C for 1000 hours (UL E516495).
- Electrical insulation: Provides high surface and volume resistivity, offering reliable insulation protection for circuit boards even under humid conditions.
- Coating thickness: The dry film thickness of UV89 can be controlled between 50–300 µm, and different viscosities can be customized according to customer requirements.
- Environmental resistance: Once cured, the UV89 coating offers excellent resistance to mechanical impact, sediment, humidity, dust, corrosive gases, and harsh environmental conditions.
- Chemical resistance: Outstanding resistance to moisture, weak acids, weak alkalis, and solvents. It performs well in sulfurization tests and is suitable for applications requiring long-term durability, such as automotive and marine environments.
Technical specifications UV89 Conformal Coating Liquid
| Property | Value |
| Appearance | Clear, slightly yellowish liquid |
| Density | 1.05 – 1.15 g/ml |
| Viscosity (25°C) | 200 – 1400 mPa·s |
| Solid content | >99% |
| Curing method | UV light + moisture |
| UV curing energy | 1500 – 2500 mJ/cm² |
| Moisture curing time | 48 – 72 hours |
| Adhesion | 5B (excellent) |
| Hardness (Shore A) | 50 |
| Flammability | V-0 (UL94 standard) |
| Dielectric strength | 85.2 KV/mm |
| Surface resistivity | 2.5 × 10¹⁵ Ω |
| Volume resistivity | 1.4 × 10¹⁴ Ω·cm |
| Operating temperature range | -50°C ~ +150°C |
| Salt spray resistance (5% NaCl) | Passed |
| Shelf life | 9 months (-5°C ~ 40°C) |
Applications
- Automotive electronics
- Household appliances
- Industrial control systems
- Telecommunications equipment
- New energy and marine electronics
