Permabond UV681 UV Curable Clear Coating Thin Flowable Low Viscosity to Smooth over Surfaces, Transparant, Crystal Clear Coating
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Click Here to visit our Datasheet Server (TDS, SDS, Fact Sheets, Selector Guides, etc)PERMABOND UV681 is a cure-configurable coating. Since it's curable to UV light it makes for a very configurable and customizable curing coating.
It is ideal for coating small parts and electronics (such as conformal coating) to protect against environmental and vibrational damage. The optically clear / tack free formulation also makes this product particularly suitable for coating smart card microchips amongst various other applications. Its low viscosity ensures an even, bubble-free coating and high temperature resistance allows it to resist wave-soldering.
- User-Controlled Clear Coating
- Cure on demand with UV Light
- Low viscosity for good coverage
- Tack free
- Fast curing with low-power lamps
- 100% solids, no solvent
Physical Properties of Uncured Adhesive
| Chemical Composition | Acrylate |
| Viscosity @ 25°C |
80 to 100 mPa.s (cP) |
| Specific Gravity | 1.1 |
Performance Characteristics
|
UV Curing Wavelength |
320 - 420 nm |
|
UV Curing Fixture Time (by strength of light) |
Low power 4mW/cm² battery lamp: 7 secs |
|
UV Curing Tack-Free Time (by strength of light) |
Low power 4mW/cm² battery lamp: 15 secs |
|
Tensile Strength |
10-12 N/mm² (1450-1700psi) |
|
Light Transmittance |
>98% |
|
Temperature Resistance |
212f (100C) 60% strength 302f (150C) 18% strength |
|
Appearance |
High Clarity, Colorless, Optically Clear, Transparent |
|
Elongation (ISO37) |
>50% |
|
Hardness (ISO868) |
50 to 65 Shore D |