Acrylonitrile styrene acrylate (ASA)

(1) Acrylonitrile-styrene-acrylate is the predecessor of ABS (Acrylonitrile- butadiene-styrene). Rigid transparent material, resistant to thermal shock and has a good chemical resistance.

(2) Developed to create similar material as ABS but superior in terms of weather resistance.

References

1. http://www.bpf.co.uk/plastipedia/polymers/SAN.aspx

2. Handbook of Engineering and Specialty Thermoplastic, Polyolefins and Styrenics