CLAREX UV-Cut Acrylic
Blocks more UV than the standard clear sheets
The standard CLAREX cast acrylic sheets include UV inhibitors which block UV below 375nm. The CLAREX UV-Cut filters are available for applications which require additional UV filtering. The factory has several options which block UV up to 480nm. Note that as the cut-in gets higher the sheets start to get a yellow tint. The N-039 is essentially a yellow filter.
Benefits
- Excellent optical characteristics
- No birefringence or double refraction
- Excellent weatherability
- Available smooth surface or nonglare surface
- Available with scratch & chemical resistant hardcoat
UV-Cut Filters are used in applications which are sensitive to UV light
Applications
- Display protectors
- Optical filters
- Instrumentation
- Sensor windows
Thicknesses
- 0.2mm
- 1.5mm
- 0.3mm
- 2.0mm
- 0.4mm
- 2.5mm
- 0.5mm
- 3.0mm
- 0.6mm
- 3.5mm
- 0.7mm
- 4.0mm
- 0.8mm
- 4.5mm
- 1.0mm
- 5.0mm
- 1.2mm
- Custom
Size
- 400 x 550mm is standard small sheet
- 1000 x 1000mm is standard large sheet size
- Max size depends on several factors
- Please contact us to discuss standard and custom sheet size options.
Example Transmission Curves
Physical & Chemical Properties of CLAREX UV Cut Filters
| Property | Method | Unit | UNCOATED | with HARDCOAT |
|---|---|---|---|---|
| Specific Gravity | ASTM D-792 | 1.19 | 1.19 | |
| Optical | ||||
| Refractive Index | ASTM D-542 | 1.49 | 1.49 (1.54) | |
| Mechanical | ||||
| Elongation | ASTM D-638 | % | 5 | 5 |
| Tensile Rupture Strength | ASTM D-638 | kg/cm2 | 750 | 650 |
| Flexural Rupture Strength | ASTM D-790 | kg/cm2 | 1200 | 800 |
| Thermal | ||||
| Heat Distortion Temperature | ASTM D-648 | °C | 110 | 110 |
| Maxiumum Recommended continuous temperature | °C | 80 | 80 | |
| *Available with higher temperature ratings upon request, 90-95 °C | ||||
| Coefficient of Thermal Expansion | ASTM D-696 | cm/cm/ºC | 7 x 10-5 | 7 x 10-5 |
| Specific Heat | ASTM D-638 | cal/grºC | 0.3535 | 0.35 |
| Durability | ||||
| Heat Resistance | 80ºC x 100hr | No Change | No Change | |
| Cold Resistance | -40ºC x 100hr | No Change | No Change | |
| Humidity Resistance | 60ºC x 90% x 100hr | No Change | No Change | |
| Thermal Cycle | -40ºC <> 80ºC (10 cycles) | No Change | No Change | |
| Electrical | ||||
| Surface Resistivity | w | 10^16 | 10^16 | |
| Chemical | ||||
| Methyl Alcohol (50%) | No Change | No Change | ||
| Ethyl Alcohol (50%) | No Change | No Change | ||
| Soap Aqua Solution | No Change | No Change | ||
| Toluene | Dissolved | No Change | ||
| Acetone | Dissolved | No Change | ||
| Benzene | Swollen | No Change | ||
| Ethylene Dichloride | Dissolved | No Change | ||
| Other | ||||
| Pencil Hardness | 2H | 6~8H | ||
| Adhesion | K-5400 | 100/100 | ||
| Flammability | ||||
| Fire Resistivity | UL standard | >=0.8mm Thickness | 94HB | 94HB |