Acrylic-Styrene-Acrylonitriles (ASA)

Properties and Applications

Acrylic-styrene-acrylonitrile copolymer (ASA) is a thermoplastic elastomer. This type of copolymer has excellent resistance to UV irradiation, heat, moisture, and stress cracking and probably has the best weathering resistance of all acrylonitrile elastomers. It also has good chemical resistance, and high impact strength. Its mechanical properties are very similar to acrylonitrile butadiene styrene (ABS) elastomers. However, unlike butadiene-based rubber, ASA has no double bonds in the polymer backbone, which results in significantly improved weathering and UV resistance as well as better long-term heat and chemical resistance when compared to diene rubbers.

One of the most important markets for ASAs are automotive body parts such as mirror housings and radiator grills. ASA thermoplastics are also extensively used in the building & construction, appliance, electrical/electronics, and sports goods industries.

Manufacturers & Distributors