PERMABOND UV643
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- Sub-Second High-Intensity Fixture
- Thixotropic Rigid-Plastic Bonding
- Hot-Wet Strength Retention
Product Description
Permabond UV643 is a thixotropic, extremely fast urethane-acrylate adhesive for UV bonding of rigid plastics and metal-to-plastic assemblies. It cures tack-free across 365 to 420 nm and bonds polycarbonate, PMMA, PETG, PET, ABS, and rigid PVC under the specified process conditions. Typical fixture time is under 1 second with the listed 330 mW/cm^2 mercury lamp or 400 nm, 150 mW/cm^2 LED, and 19 seconds at 0.1 mW/cm^2. Cured data include 23 N/mm^2 tensile strength, 50% elongation, and retained polycarbonate shear strength after four weeks at 85 deg C and 85% RH.
Key features
- Thixotropic Application Control: Viscosity is 2,000 mPa s at 20 rpm and 17,600 mPa s at 2 rpm.
- Sub-Second High-Intensity Fixture: Typical fixture time is under 1 second with the listed high-intensity UV lamp conditions.
- Hot-Wet Strength Retention: Polycarbonate shear strength remained 13 N/mm^2 after four weeks at 85 deg C and 85% RH.
Applications
Applications include fast bonding of PC, PMMA, PETG, PET, ABS, rigid PVC, and supported metal-to-plastic combinations.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Chemical Properties
Other Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Fixture time depends on lamp output, distance, and substrate transmission.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Chemical composition | Urethane acrylate | As supplied | |
| Appearance | Pale yellow | Colorless when cured | |
| Viscosity | 2,000 | mPa s | At 25 deg C; 20 rpm |
| Viscosity | 17,600 | mPa s | At 25 deg C; 2 rpm |
| Specific gravity | 1.0 | As supplied | |
| Typical fixture time | <1 to 19 | seconds | Listed UV lamp conditions |
| Cure wavelength | 365 to 420 | nm | Match lamp output to the photoinitiator |
After-processing / final-state properties
Values are typical cured properties for the stated methods and substrates.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Overlap shear strength - polycarbonate | 13 | N/mm^2 | Substrate failure observed |
| Overlap shear strength - acrylic | 7 | N/mm^2 | Typical cured value |
| Overlap shear strength - aluminum to PC | 10 | N/mm^2 | Typical cured value |
| Tensile strength | 23 | N/mm^2 | ASTM D638 |
| Elongation at break | 50 | % | ASTM D638 |
| Elastic modulus | 1.2 | GPa | ASTM D638 |
| Hardness | 65 | Shore D | ISO 868 |
| Polycarbonate shear after hot-wet aging | 13 | N/mm^2 | 4 weeks at 85 deg C and 85% RH; tested at 23 deg C |
