Product Description
The HumiSeal® UV40 LED UV Curable Conformal Coating is a one-part, high-solids, dual-cure acrylated polyurethane coating designed for LED UV curing. This advanced coating technology ensures lower energy consumption, reduced curing temperatures, and extended equipment lifespan while delivering exceptional moisture and chemical resistance. With tack-free curing under LED UV light and a secondary ambient curing mechanism, it provides comprehensive protection for electronic components and circuit boards.
Features of HumiSeal® UV40 LED UV Curable Conformal Coating:
- Curing tack-free under LED UV light at 385nm or 395nm and microwave light sources.
- Allowing application at elevated temperatures for better process stability.
- Providing secondary curing for unexposed areas within 7 days at ambient conditions.
- Fluorescing under UV light for easy inspection and quality control.
- Delivering excellent chemical and moisture resistance for enhanced protection.
- Being highly crosslinked, ensuring superior durability and environmental resistance.
Applications of HumiSeal® UV40 LED UV Curable Conformal Coating:
- Electronics & PCB Protection: Coating printed circuit boards and sensitive components for durability.
- Selective Coating Processes: Compatible with spraying, brushing, and selective coating equipment.
- Automotive & Aerospace Electronics: Enhancing chemical resistance and thermal performance.
- Industrial & High-Reliability Applications: Providing long-term environmental protection.
- Rework & Repair Processes: Allowing mechanical abrasion, thermal displacement, or chemical stripping for rework.
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs. With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with: Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.About Prostech
| Property | Value |
|---|---|
| Density (g/cm³) | 1.05 ± 0.05 |
| Minimum Solids Content (%) | 95 |
| Viscosity (CPS) | 650 ± 150 |
| Recommended Coating Thickness (microns) | 25 – 125 |
| Recommended UV Cure | See curing section below |
| Shelf Life at Room Temperature | 12 months |
| Recommended Stripper | HumiSeal® Stripper 1100 (Not available in EU) |
| Thermal Shock (50 cycles per MIL-I-46058C) | -65°C to 125°C |
| Glass Transition Temperature (Tg – DSC) | -2.4°C |
| Coefficient of Thermal Expansion (TMA) | 21 ppm/°C (Below Tg), 116 ppm/°C (Above Tg) |
| Modulus (DMA) | 784 MPa @ -40°C, 29.5 MPa @ 25°C, 2.25 MPa @ 80°C |
| Flammability (UL-94) | Pending |
| Shore Hardness (D) | 35 |
| GB30981-2020 Compliance | Yes |
| Dielectric Withstand Voltage | > 1500 V (per MIL-I-46058C) |
| Insulation Resistance | 5.0 × 10¹⁴ ohms (500TΩ) (per MIL-I-46058C) |
| Moisture Insulation Resistance | 6.0 × 10¹⁰ ohms (60GΩ) (per MIL-I-46058C) |
| Surface Insulation Resistance | 8.78 log10 Ohms (per IPC-J-STD-004) |
| Resistance to Chemicals | Excellent |
