Permabond UV006400002L0101, UV640 UV-Curable Adhesive, 2 Liter Bottle
Permabond UV006400002L0101 UV640 UV-Curable Adhesive, 2 Liter Bottle
Permabond UV640 is a single-part, fast-setting UV-curable adhesive designed for bonding plastics, with excellent adhesion to polycarbonate and a wide range of other plastic substrates. UV640 delivers very high shear strength, elongation, and impact resistance — making it well suited for assemblies involving dissimilar materials or substrates with different coefficients of thermal expansion, where a rigid adhesive would crack or delaminate under thermal cycling or mechanical stress. The 2 liter bottle delivers the highest volume per changeover, making it the most efficient option for high-throughput production and automated dispensing operations.
Sold individually (2 liter bottle).
Specifications
| SKU | UV006400002L0101 |
|---|---|
| Brand | Permabond |
| Type | Single-part UV-curable adhesive |
| Grade | UV640 |
| Volume | 2 liter bottle |
| Cure Method | UV light cure (on demand) |
| Cured Appearance | Clear |
| Cured Properties | High shear strength, high elongation, impact resistant |
| Primary Substrates | Plastics, polycarbonate |
| Key Property | Plastic bonding, dissimilar material bonding, thermal cycling resistance |
| Application | Plastic assemblies, polycarbonate bonding, electronics, medical devices, dissimilar substrate bonding |
Technical Data Sheet (PDF) | Safety Data Sheet (PDF)
Frequently Asked Questions
How does UV640 compare to UV630 for plastic bonding?
Both UV630 and UV640 are formulated for plastic bonding with high shear strength, elongation, and impact resistance for polycarbonate and other plastics. For specific differences in viscosity, cure speed, or substrate compatibility between UV630 and UV640, consult the individual Technical Data Sheets or contact us — the right grade depends on your specific application requirements.
What plastics does UV640 bond?
UV640 has excellent adhesion to polycarbonate and bonds a wide range of plastics. Some plastics with very low surface energy (such as polyethylene or polypropylene) may require surface preparation or a primer for optimal adhesion. Consult the Technical Data Sheet for a full substrate compatibility list.
Why is UV640 recommended for dissimilar materials with different coefficients of thermal expansion?
When two materials expand and contract at different rates during thermal cycling, a rigid adhesive bond will experience stress at the bond line and can crack or delaminate over time. UV640’s high elongation allows the cured bond to flex and accommodate this differential movement, maintaining bond integrity through repeated thermal cycles — critical for electronics assemblies, outdoor applications, and any assembly exposed to temperature variation.
When should I choose the 2 liter bottle over the 1 liter or 50ml options?
The 2 liter bottle offers the highest volume per changeover and the lowest per-unit cost, making it ideal for high-throughput production lines and automated dispensing systems with high UV640 consumption. The 1 liter bottle (UV006400001L0101) suits moderate-volume production, while the 50ml bottle (UV006400050B0101, case of 10) is best for bench-level assembly and prototyping.
