Permabond UV006450050T0101, UV645 UV-Curable Adhesive, 50ml Bottle, Case of 10
Permabond UV006450050T0101 UV645 UV-Curable Adhesive, 50ml Bottle, Case of 10
Permabond UV645 is a single-part, fast-curing, high-viscosity UV-curable adhesive designed for bonding plastics, metals, and glass. Its high viscosity makes it ideal for vertical surfaces, gap filling, and sealing applications where lower-viscosity UV adhesives would sag or flow before cure. UV645 delivers very high shear strength, elongation, and impact resistance — making it well suited for assemblies with dissimilar materials or substrates with different coefficients of thermal expansion. Good depth-of-cure capability also makes UV645 effective as a sealant in addition to a structural adhesive. The 50ml bottle is ideal for bench-level assembly and prototyping.
Sold in cases of 10 x 50ml bottles.
Specifications
| SKU | UV006450050T0101 |
|---|---|
| Brand | Permabond |
| Type | Single-part UV-curable adhesive / sealant |
| Grade | UV645 |
| Volume | 50ml bottle |
| Packaging | Case of 10 bottles |
| Viscosity | High viscosity |
| Cure Method | UV light cure (on demand) |
| Cured Appearance | Clear |
| Cured Properties | High shear strength, high elongation, impact resistant |
| Depth of Cure | Good — suitable for sealing applications |
| Substrates | Plastics (including polycarbonate), metals, glass |
| Key Property | High viscosity, multi-substrate bonding, sealant capability, dissimilar material bonding |
| Application | Plastic bonding, metal bonding, glass bonding, gap filling, sealing, vertical surface bonding, dissimilar substrate assemblies |
Technical Data Sheet (PDF) | Safety Data Sheet (PDF)
Frequently Asked Questions
How does UV645 differ from UV630 and UV640 for plastic bonding?
All three grades bond plastics with high shear strength, elongation, and impact resistance, but UV645 stands out in two key ways: its high viscosity prevents sagging on vertical surfaces and enables gap filling, and it also bonds metals and glass in addition to plastics — making it a more versatile choice for multi-substrate assemblies. UV645’s good depth-of-cure capability also makes it suitable as a sealant, which UV630 and UV640 are not specifically designed for.
Can UV645 be used as a sealant?
Yes. UV645’s good depth-of-cure capability makes it suitable for sealing applications in addition to structural bonding. This makes it a practical choice when a single adhesive needs to both bond and seal a joint — reducing the number of materials needed in an assembly process.
Why is high viscosity important for UV adhesive selection?
High-viscosity UV adhesives like UV645 stay in place after application, making them suitable for vertical surfaces, overhead applications, and joints with larger gaps where a lower-viscosity adhesive would flow out of position before UV cure is applied. If your application involves non-horizontal surfaces or requires gap filling, UV645’s high viscosity is a significant advantage over lower-viscosity UV grades.
What UV light source is required to cure UV645?
UV645 cures on exposure to UV light in the appropriate wavelength range. Cure time depends on UV intensity, wavelength, and bond line or sealant bead thickness. Consult the Technical Data Sheet for specific cure parameters for your application.
