PERMABOND UV7141
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- Shadow-Area Anaerobic Cure
- Second-Scale UV Fixture
- High-Transmittance Glass Bonding
Product Description
Permabond UV7141 is a colorless, dual-cure methacrylate adhesive that combines rapid UV fixture with secondary anaerobic cure in shadowed areas. It is intended for ceramic-coated glass, mirrors, glass, and metal assemblies where light cannot reach the complete bondline. Typical UV fixture time ranges from 1 to 20 seconds under the listed lamp conditions, followed by anaerobic handling strength in 30 to 60 minutes and working strength in 3 to 6 hours. The cured adhesive provides 14 to 17 N/mm^2 steel-to-glass tensile strength, more than 98% light transmittance, and 60 to 70 Shore D hardness.
Key features
- Shadow-Area Anaerobic Cure: Secondary anaerobic cure develops in bondline areas not reached by UV light.
- Second-Scale UV Fixture: Typical UV fixture time is 1 to 20 seconds under the listed lamp conditions.
- High-Transmittance Glass Bonding: The cured adhesive provides more than 98% light transmittance.
Applications
Applications include bonding ceramic-coated glass, mirrors, glass, and metal where UV fixture and secondary anaerobic cure are required.
Technical Specifications
No specifications available.
Additional Information
As-supplied / before-processing properties
Fixture time depends on lamp output, distance, and substrate transmission.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Chemical composition | Methacrylate ester | As supplied | |
| Appearance | Colorless | As supplied | |
| Viscosity | 1,200 to 1,700 | mPa s | At 25 deg C; 20 rpm |
| Specific gravity | 1.1 | As supplied | |
| Typical UV fixture time | 1 to 20 | seconds | Listed UV lamp conditions |
| Cure wavelength | 365 to 420 | nm | Match lamp output to the photoinitiator |
| Anaerobic handling time | 30 to 60 | minutes | Shadow-area cure |
| Anaerobic working strength | 3 to 6 | hours | Shadow-area cure |
After-processing / final-state properties
Values are typical cured properties for the stated methods and substrates.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Steel-to-glass tensile strength | 14 to 17 | N/mm^2 | ASTM D2095-69 |
| Tensile strength | 20 | N/mm^2 | ISO 37 |
| Refractive index | 1.490 | Cured adhesive | |
| Light transmittance | >98 | % | Cured adhesive |
| Elongation | 20 to 50 | % | ISO 37 |
| Hardness | 60 to 70 | Shore D | ISO 868 |
| Dielectric strength | 10 to 12 | kV/mm | Typical cured value |
| Coefficient of thermal expansion | 85 x 10^-6 | mm/mm/deg C | Typical cured value |
