poly(styrene-co-acrylonitrile)

polymer

Poly(styrene-co-acrylonitrile), or SAN, is a random copolymer that combines styrene and acrylonitrile monomers to create a rigid, transparent thermoplastic with improved chemical resistance and strength compared to polystyrene alone. It is widely used in consumer appliances, automotive components, and medical devices where transparency, dimensional stability, and resistance to oils, greases, and environmental stress cracking are required. SAN bridges the gap between commodity polystyrene (lower cost but more brittle) and engineering plastics like ABS, making it a practical choice for applications demanding modest performance upgrades without premium material costs.

appliance housings and bezelsautomotive interior trimmedical device housingstransparent protective guardschemical storage containersconsumer electronics enclosures

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)	384.2	K	—

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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.