General Information of PERMABOND UV643 UV-Curable Adhesive
PERMABOND UV643 UV-Curable Adhesive is a thixotropic, extremely fast UV-curable acrylic adhesive developed for the fast bonding of many rigid plastics, also in combination with metals. It cures tack-free and provides excellent performance on several thermoplastics including polycarbonate, PMMA PETG, PET, ABS, and rigid PVC. It also provides high durability when exposed to hot/wet conditions (i.e. tested at +85°C/85% RH).
Key Features
- Excellent strength on PC, PVC, and other rigid plastics
- Tack-free surface cure
- Very quick cure at wavelengths from 365 to 420 nm, good on stabilized plastics
- Exceptional resistance to warm and humid conditions
- Excellent resistance to thermal cycles on plastic assemblies
- Resists yellowing
About Prostech
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:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
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.
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% |
