poly(acrylonitrile-co-styrene-co-acrylate)

polymer

Poly(acrylonitrile-co-styrene-co-acrylate), or ASA, is a three-component engineering thermoplastic that combines the rigidity and chemical resistance of acrylonitrile, the processability of styrene, and the impact toughness and UV stability imparted by the acrylate phase. This terpolymer is widely used in outdoor applications, automotive components, and consumer goods where environmental durability and aesthetic appearance are critical, as the acrylate component provides superior weathering resistance compared to ABS (acrylonitrile-butadiene-styrene) alternatives. Engineers select ASA when long-term UV exposure, temperature cycling, and ozone resistance are required without sacrificing impact strength or dimensional stability.

outdoor automotive trimweather-resistant housingsUV-stable consumer enclosuresarchitectural extrusionsgarden equipmentsolar panel frames

Compliance & Regulations

?UL 94?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Glass Transition Temperature(Tg)	239	°F	—

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Regulatory Screening

Environmental

Export Control

Safety & Biocompatibility

Quality & Standards

Industry-Specific

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.