Acrylic (PMMA) and AS Resin (Acrylonitrile-Styrene Copolymer) are popular thermoplastics known for their transparency and moldability. However, they differ significantly in durability, UV resistance, and applications.
Acrylic is ideal for outdoor applications with excellent clarity and UV resistance. AS Resin offers better impact resistance and lower cost, but it is less durable under sunlight.
What is Acrylic?
Acrylic (PMMA) is a clear thermoplastic with high light transmittance (up to 92%) and excellent weatherability. Commonly used in signage, light covers, and displays, it is lightweight and resistant to UV degradation.
What is AS Resin?
AS Resin is a copolymer of acrylonitrile and styrene, offering improved chemical resistance and toughness. It is often used in cosmetic packaging, appliance housings, and other indoor components.
Comparison Table
| Property | Acrylic (PMMA) | AS Resin |
|---|---|---|
| Transparency | Excellent (92%) | Good |
| UV Resistance | High | Low |
| Impact Strength | Moderate | Better |
| Chemical Resistance | Fair | Good |
| Cost | Higher | Lower |
| Typical Uses | Displays, lighting, signage | Appliances, packaging, cosmetics |
Which Material Should You Choose?
If your project requires long-term outdoor use and perfect clarity, acrylic is the go-to choice. For indoor applications where toughness and lower cost are key, AS resin offers a good balance of performance and value.
Learn more at the Resin & Plastic Materials Environmental Association.
