Super-Hard-Coat Abrasion-Resistant Acrylic Sheets (RHG)
An optically clear CLAREX acrylic sheet with enhanced scratch resistance for demanding abrasion-prone applications.
CLAREX super-hard-coat abrasion-resistant acrylic (RHG) features a 9H pencil hardness, offering even greater scratch resistance than standard hard-coat acrylic grades. This makes it a strong fit for applications where surface durability and abrasion resistance are especially important.
Because this upgraded hard coat is more brittle than standard hard coat options, RHG is best suited for environments where scratch resistance matters more than impact resistance. It is also a more premium option, making it ideal for applications that require a higher level of surface protection.

Benefits of Super-Hard-Coat Acrylic Sheets
Built for Maximum Scratch Resistance
Offers even greater scratch resistance than standard hard-coat acrylic, with 9H pencil hardness for demanding high-abrasion applications.
Optical Grade Cell-Cast Acrylic Clarity
Made from optical grade cell-cast acrylic for excellent visual quality, with no retardation or birefringence.
Flexible Coating Configurations
Available with super-hard-coat on one or both sides.
Non-Glare Texture Options
Available with non-glare textures to help reduce glare in display applications.
No Retardation or Birefringence
Offers optical performance without retardation or birefringence for demanding optical and display applications.
Custom Color Matching Available
Offered in a range of colors, with color matching available if a standard option does not meet your requirements.
Common Applications for Abrasion-Resistant Acrylic Sheets
Formulated for optical and display applications that require maximum scratch resistance, durability, and optical clarity.
Protective Windows for Flat Panel Displays
Clear, scratch-resistant protection for high-use display surfaces.
Scanner Bed Windows
Durable optical windows for scanner applications with repeated surface contact.
Barcode Scanner Exit Windows
Protects scanner exit windows while maintaining optical clarity.
Camera Enclosure Windows
Combines clear viewing with added surface durability.
Machine Vision
Supports vision systems that require optical clarity and scratch resistance.
Sensor Windows
Protective optical windows for sensors and related equipment.
HMI & Control Panel Windows
Helps protect operator interfaces while maintaining clear visibility and strong scratch resistance.
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
Sheet Size Options
- Standard sheet: 400mm × 550mm
- Custom sizes: Maximum dimensions depend on application. Contact us to discuss available options.
Finished Parts
Sheets can be fabricated and finished to customer specifications.
Customization
Custom abrasion-resistant acrylic 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 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 Properties
Properties of CLAREX Super-Hard-Coat PMMA Sheet
| PROPERTY | METHOD | SUPER HARD COAT (RHG20) |
|---|---|---|
| Pencil Hardness | 45 Degree at 1kg Load (JIS K5600) | 9H |
| Coating Adhesion | Cross Cut Measurement (100 Squares) | 100 / 100 |
| Abrasion Resistance | 0000 Steel Wool 10 Cycle at 1kg Load | NO SCRATCH |
| Total Light Transmittance | Measured by Haze Meter (JIS K7105) | 92% |
| Haze | 0.17% | |
| Heat Deflection Temperature | JIS K7121 | 110°C |
| Coefficient of Thermal Expansion | JIS K6911 | 7×10-5 cm/cm°C |
| Max Recommended Continuous Temperature | 80 °C |
*These materials with higher temperature ratings (90-95°C) are now available upon request. Contact us for more info.

Ready to Get Started with Super-Hard-Coat Abrasion-Resistant Acrylic?
Whether you need standard sheets, custom sizes, one- or two-sided hard-coat options, non-glare textures, or fabricated finished parts, our team can help configure the right solution for your application.