poly(styrene-co-methylmethacrylate)
polymerPoly(styrene-co-methylmethacrylate) (SMMA) is an amorphous copolymer combining the rigidity and clarity of polystyrene with the improved chemical resistance and weatherability of polymethyl methacrylate (PMMA). This material bridges the performance gap between commodity polystyrene and premium acrylic, offering better environmental stability and toughness than either homopolymer alone. It is widely used in automotive glazing, consumer electronics housings, optical applications, and outdoor signage where optical clarity combined with durability and processing efficiency are required.
automotive light covers and lensestransparent electronic enclosuresoutdoor advertising and signageoptical displays and protective shieldsappliance body panelsUV-resistant transparent components
Compliance & Regulations
?UL 94?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | K | — | — |
Verified Unverified Low confidence (<80%) Link to source
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.