PERMABOND® UV643
PERMABOND® UV643 is a fast-curing, thixotropic UV adhesive developed for high-strength bonding of rigid plastics and metals. With excellent resistance to heat and humidity, it performs reliably in harsh conditions and bonds thermoplastics such as PC, PVC, and ABS.
UV643 Features:
- Strong adhesion to PC, PVC, and rigid plastics
- Tack-free surface cure
- Very quick UV cure at 365–420 nm
- Resistant to yellowing and thermal cycles
- Exceptional hot/wet durability
UV643 Applications:
- Plastic bonding in high-humidity environments
- Fast assembly of thermoplastic and metal components
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 acrylate |
| Appearance | Pale yellow (colorless when cured) |
| Viscosity @ 25°C | 20rpm: 2000 mPa.s (cP) 2rpm: 17,600 mPa.s (cP) |
| Specific gravity | 1.0 |
Typical Curing Properties
| Typical fixture time (acrylic)* | Mercury short arc lamp 330 mW/cm²: <1 secs UV LED 400nm 150 mW/cm²: <1 secs UV LED 400nm 0.1m W/cm²: 19 secs |
| Cure wavelength | 365 - 420 nm** |
Typical Performance of Cured Adhesive
| Overlap shear strength | Polycarbonate: 13 N/mm² (1885 psi)* Acrylic: 7 N/mm² (1015 psi) PETG: 6 N/mm² (870 psi)* PVC: 8 N/mm² (1160 psi)* Aluminium to PC: 10 N/mm² (1450 psi) Mild steel to PC: 10 N/mm² (1450 psi) |
| Tensile strength (ASTM D638) | 23 N/mm² (3336 psi) |
| Elongation at break (ASTM D638) | 50% |
| Elastic modulus (ASTM D638) | 1.2 GPa |
| Hardness (ISO868) | 65 Shore D |
| Linear Shrinkage | 1% |
| Tg (DMA, Tan delta) | 83°C |
| Water absorbtion (ISO62) | 24h at 23°C: 4% 2h in boiling water: 5% |
