Description
PERMABOND® UV620 is a single part, fast curing, UV curable adhesive. Its excellent optical clarity and resistance to yellowing make it ideal for bonding glass and crystal for a high quality finish. It is well suited for a variety of applications including glass furniture, decorative ornaments and other glass objects where high strength and appearance are required.
- Cure on demand
- Optically clear
- Resistant to yellowing
- Fast curing with low-power lamps
- 100% solids, no solvents
- Excellent adhesion to metal and glass
Physical Properties of Uncured Adhesive
| Chemical Composition | Methacrylate ester |
| Appearance | Colorless, Clear |
| Viscosity @ 25°C | 20 rpm: 2,200-2,900 mPa.s (cP) |
| Specific Gravity | 1.0 |
Typical Curing Properties
| Typical Fixture Time* | Low power 4mW/cm² battery lamp: 5 secs LED 100mW/cm² lamp: 2 secs UV light guide 30W/cm²: 1 sec |
| Cure Wavelength | 365 – 400 nm** |
*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.
**LED UV lamps have a narrow range of spectral output. It is important to check suitability with Permabond in order to match the LED lamp’s peak wavelength with that of the adhesive’s photoinitiator to ensure optimal adhesive cure.
Typical Performance of Cured Adhesive
| Tensile strength (ASTM D-2095- 69) steel to glass* | 9-10 N/mm² (1300 psi – 1450 psi) |
| Tensile strength (ISO37) | 16 N/mm² (2300 psi) |
| Refractive index (cured) | 1.490"}”>>1.490 |
| Elongation (ISO37) | 80%"}”>>80% |
| Hardness (ISO868) | 60-75 Shore D |
| Dielectric strength | 12 KV/mm |
| Dielectric constant 1MHz@25°C | 4 |
*Strength results will vary depending on the level of surface preparation and gap
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