Product Introduction
The HumiSeal® UV50LV UV Curable Conformal Coating is a one-part, low-viscosity, high-solids acrylated polyurethane coating designed for UV dual curing. It offers excellent chemical resistance, flexibility, and moisture protection for electronic components. This coating cures tack-free under UV light and features a secondary moisture cure mechanism that ensures full curing within 7 days at ambient conditions. It fluoresces under UV light for easy inspection and meets environmentally friendly standards.
HumiSeal® UV50LV Features:
- Tack-free curing under UV light with a secondary moisture cure in 7 days.
- Low viscosity, suitable for film coater-type selective coating equipment.
- Exceptional chemical, moisture, and thermal cycling resistance.
- Fluoresces under UV light for easy inspection.
- No VOCs or solvents; environmentally friendly.
- UL File Number E105698 recognized.
HumiSeal® UV50LV Applications:
- Electronics & PCB Protection: Protects printed circuit boards from moisture and chemicals.
- Selective Coating Processes: Works with film coater, spraying, and automated dispensing systems.
- Automotive & Aerospace Electronics: Provides durability in extreme environments.
- Industrial Applications: Ensures long-term protection for high-reliability applications.
- Quality Inspection & Rework: UV fluorescence aids in easy inspection and repairs.
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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| Property | Value |
|---|---|
| Density (g/cm³) | 1.0 to 1.1 |
| Minimum Solids Content (%) | 95 |
| Viscosity (CPS, per Fed-Std-141, Meth. 4287) | 80 - 120 |
| Recommended Coating Thickness (microns) | 25 - 125 |
| Recommended UV Cure | See Curing Below |
| Shelf Life at Room Temperature (DOM) | 12 months |
| Glass Transition Temperature (Tg - DSC) | -1°C |
| Coefficient of Thermal Expansion (TMA) | 122 ppm/°C (Below Tg), 264 ppm/°C (Above Tg) |
| Modulus (DMA) @ 25°C | 6.394 MPa |
| Flammability (per UL-94) | V-0 |
| Dielectric Withstand Voltage (per MIL-I-46058C) | > 1500 V |
| Surface Insulation Resistance (per IPC-J-STD-004) | 8.61 log10 ohms |
| Surface Resistivity (ASTM D-257) | 7.4 × 10¹⁴ Ohm |
| Volume Resistivity (ASTM D-257) | 3.9 × 10¹³ Ohm·cm |
| Moisture Insulation Resistance (IPC-CC-830) | 3.0 × 10⁹ Ohm |
| SIR 85C/85RH (7 days, IPC B24) | Pass > 500MΩ |
| CTI (ASTM D-3638) | PLC=0 (600V) |
| Thermal Conductivity | 0.152 W/m·°K |
| Resistance to Chemicals | Excellent |



