UV-Filtering Acrylic Sheets
Optical-grade acrylic designed to protect sensitive materials and components from UV exposure.
CLAREX UV-filtering acrylic sheets are designed to block harmful ultraviolet radiation while maintaining excellent optical clarity and visible light transmission. They are available in a range of UV-cut formulations, allowing the level of UV protection to be matched to the needs of the application.
Standard CLAREX cast acrylic sheets include UV inhibitors that block wavelengths below 375nm; however, for applications requiring additional UV protection, CLAREX UV-cut sheets are available with cut-in wavelengths extending up to 480 nm. As the cut-in wavelength increases, the material takes on a yellow tint, most notably with grade N-039, which also functions as a yellow filter.
With a combination of UV protection, visible light transmission, and the lightweight, impact-resistant properties of acrylic, CLAREX UV-cut sheets are a versatile alternative to glass for protective, display, and optical applications.
UV-cut filters are used in applications which are sensitive to UV light.
Benefits of UV-Blocking Acrylic Filters & Sheets
Outstanding Optical Clarity
High light transmission with crystal-clear visibility, ideal for displays and protective covers hat require UV filtering acrylic sheet materials.
No Birefringence
Eliminates double refraction, ensuring distortion-free performance under polarized light.
Superior Weatherability
Resists yellowing, clouding, and degradation from long-term outdoor UV exposure.
Surface Flexibility
Available in glossy for maximum clarity or non-glare to reduce reflections in bright environments.
Hard-Coat Protection
Optional scratch- and chemical-resistant coating extends durability in demanding applications.
UV Shielding
Blocks harmful ultraviolet rays, protecting sensitive materials and extending product life when using UV-blocking acrylic sheet solutions.
Common UV-Filtering Acrylic Sheet Applications
Designed for applications where UV filtering acrylic is specified to protect light-sensitive contents.
Display Cases & Protective Covers
Clear protective panels for artwork, exhibits, collectibles, and other light-sensitive contents that may be affected by UV exposure.
Lighting & Illumination Systems
UV-filtering covers, windows, and optical components that help control ultraviolet transmission from artificial light sources.
Optical Filters
Precision acrylic filters for applications that require controlled UV transmission while maintaining high optical quality in the visible spectrum.
Scientific Equipment & Instrumentation
Protective windows, covers, and optical components for laboratory and scientific equipment where UV filtering and visual clarity are important.
Sensor Windows
Protective windows for sensors and detection systems that require specific UV-blocking or wavelength-filtering performance.
Sample materials may be available to help you evaluate material performance.
THICKNESS OPTIONS
- 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 Options
Custom UV-blocking acrylic sheet sizes may be influenced by thickness, filtering grade, and fabrication requirements.
- Standard small sheet: 400mm × 550mm
- Standard large sheet: 1000mm × 1000mm
- Custom sizes: Maximum dimensions depend on application. Contact us to discuss options.
Finished Parts
Sheets can be fabricated and finished to customer specifications.
Fabrication options for UV filtering acrylic sheet materials include cutting, machining, adhesive application, and printing.
Customization
Custom sheets & parts to meet the needs of your applications.
Build your own sheets. Do you have a unique design requirement that cannot be met with off-the-shelf UV filter sheet materials? CLAREX acrylic can be fully customized and produced from low-volume runs to mass production. Select thickness, formulation, additives, pigments, textures, surface coatings, and optical coatings to create thin acrylic sheets tailored to your application.
Typical lead time is 4–8 weeks. Finished parts and assemblies can also be fabricated to specification.
PRODUCT SPECS
Transmission Curves for UV-Filtering Acrylic
PRODUCT PROPERTIES
Physical & Chemical Properties of CLAREX UV-Cut Filters
| PROPERTY | METHOD | UNIT | UNCOATED | WITH HARD COAT |
|---|---|---|---|---|
| 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 | 108 | 110 |
| Maximum 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 | >6H | ||
| Adhesion | K-5400 | 100/100 | ||
| FLAMMABILITY | ||||
| Fire Resistivity | UL standard | >=0.8mm Thickness | 94HB | 94HB |
HOW IT WORKS
How Does an Acrylic Sheet Block UV?
Acrylic sheets block ultraviolet radiation by incorporating specialized UV-absorbing additives into the material during manufacturing. These additives selectively absorb and filter UV wavelengths before they can pass through the sheet. In UV filtering acrylic sheets, the level of UV blocking is controlled by formulation, allowing different cutoff wavelengths depending on application requirements.
This built-in UV filtering helps prevent yellowing, clouding, and material degradation, while also protecting sensitive items behind the sheet from UV damage. As a result, UV-blocking acrylic sheets are commonly used in display cases, protective covers, signage, and instrumentation where long-term clarity and durability are essential.
Ready to Get Started with UV-Filtering Acrylic Sheets?
Whether you need standard sizes, custom fabrication, or a specialized formulation, our team can help configure CLAREX acrylic to meet your exact requirements.