PERMABOND® UV639
PERMABOND® UV639 is a UV-curing adhesive designed for strong, transparent bonding of plastics including acrylic, PETG, and polycarbonate. It also bonds well to glass and metal and is ideal for applications where visual clarity is essential.
UV639 Features:
- Cures on demand with UV light
- High transparency for aesthetic applications
- Excellent adhesion to plastics
- High elongation and flexibility
- Low shrinkage during cure
UV639 Applications:
- Bonding of optical and transparent components
- Plastic display and decorative assemblies
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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Physical Properties of Uncured Adhesive
| Chemical composition | Urethane methacrylate |
| Appearance | Colourless, clear |
| Viscosity @ 25°C | 20rpm: 1,200-1,800 mPa.s (cP) |
Typical Curing Properties
| Typical fixture time (PMMA)* | Low power 4mW/cm² battery lamp: 5secs LED 200mW/cm² lamp: <1s |
| Typical fixture time (Polycarbonate)* | Low power 4mW/cm² battery lamp: 10secs |
| Cure wavelength | 365 - 420 nm** |
Typical Performance of Cured Adhesive
| Overlap shear strength (ISO4587) | Polycarbonate >8 N/mm² (>1160 psi)* Acrylic >6 N/mm² (>870 psi)* PET-G >7 N/mm² (>1015 psi)* PET >5 N/mm² (>725 psi)* |
| Block shear strength (ASTM D4501) | PMMA/Glass >8 N/mm² (>1160 psi)* PMMA/PMMA 6 N/mm² (870 psi)** |
| Tensile strength (ISO37) | 20 N/mm² (2900 psi) |
| Elongation at break (ISO37) | >220% |
| Hardness (ISO868) | 35-45 Shore D |
| Water absorbtion (ISO62) 2 hours in boiling water | 14% |
| Glass transition (Tg) | 70°C (158°F) |
