Description
Permabond UV7146 is a UV-curable adhesive with a secondary anaerobic cure mechanism. This makes it ideal for bonding materials such as ceramic coated glass, mirrors etc. where UV-light cannot penetrate to provide full cure in shadow areas. This dual cure mechanism helps speed up production rates. The UV cure tacks the components in place in seconds, reducing the need for jigging. The bulk of the adhesive then cures more slowly to produce optimum performance.
Features & Benefits
- Cures in shadow areas
- High shear strength
- Excellent environmental resistance
- 100% solids, no solvents
- Excellent adhesion to metal and glass
- Thixotropic for controlled flow
Physical Properties of Uncured Adhesives
| Chemical composition |
Methacrylate este |
| Appearance | Colourless |
| Viscosity @ 23°C | 20 rpm: 15,000-23,000 mPa.s (cP) 2.5rpm: 65,000-120,000mPa.s (cP) |
| Specific gravity | 1.0 |
Typical Curing Properties
| Typical fixutre time* | Low power 4mW/cm² battery lamp: <15 secs LED 100mW/cm² lamp: 3 secs UV light guide 30W/cm²: 2 secs |
| Cure wavelength | 365 nm |
| Anaerobic handling time @23°C | <60 minutes (zinc) |
| Anaerobic working strength @23°C | 3-6 hours |
| Maximum gap fill | 0.5mm (0.02”) |
*The cure time depends on the power of the UV lamp, its spectral output, the distance between the lamp and the components, and the transmission characteristics of the substrates. The cure time quoted here was determined using a low power, hand held lamp. Most industrial UV lamps would give faster cure rate.
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