Product Introduction
The HumiSeal® UV20GEL is a high-performance, fast-curing UV gel designed for staking and vibration protection in PCB and electronic applications. This thixotropic, non-sag urethane acrylate bonds effectively to engineered plastics and metal substrates while offering exceptional flexibility. It cures quickly under UV light and has a secondary moisture cure for shadowed areas.
HumiSeal® UV20GEL Features:
- Rapid curing under UV light with secondary moisture cure.
- Strong adhesion to various substrates, including polycarbonate, PVC, and metals.
- Exceptional vibration and shock resistance.
- Thixotropic consistency for precise application.
- Fluoresces under UV light for easy inspection.
- RoHS & REACH compliant.
HumiSeal® UV20GEL Applications:
- PCB & Electronics Protection: Component staking and vibration dampening.
- Plastic Bonding: Ideal for bonding plastic assemblies.
- Mechanical Shock Protection: Applied in high-impact environments.
- General Industrial Bonding: Suitable for metal and plastic substrates.
- Conformal Coating Compatibility: Works well with HumiSeal UV-curable coatings.
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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Uncured Properties
| Property | Value |
|---|---|
| Solvent Content | 100% Solids |
| Chemical Class | Acrylated Urethane |
| Appearance | Opaque White |
| Shelf Life (DOM) | 6 months |
| Density (g/mL) | 1.08 |
| Viscosity | Non-sag Thixotropic Paste |
| Thixotropic Index | > 5.5 |
Cured Properties
| Property | Value |
|---|---|
| Hardness, Shore A (Initial) | 10 |
| Hardness, Shore A (10 days post cure) | 60 |
| Tensile Strength (MPa) [psi] | 4.8 [700] |
| Elongation (%) | > 400 |
| Moisture Resistance | Excellent |
| Surface Resistivity (Ohm) | 1.4 × 10¹² |
| Volume Resistivity (Ohm*cm) | 8.5 × 10¹³ |
| Dielectric Withstand Voltage | Pass @ 1500 V (per MIL-I-46058C) |
| Peak Operating Temperature (°C) | -40 to 125 |
| Polycarbonate Lap Shear (psi) | 200 |
| PVC Lap Shear (psi) | 450 |
| Glass Transition Temperature (Tg, per TMA) (°C) | 31 |
| Coefficient of Thermal Expansion (ppm/K, above Tg) | 239 |
| Comparative Tracking Index (CTI, 3 & 5 mm thick) | 600 V |
| Flammability at 3mm | UL 94 H-B |



