poly(p-phenylene sulfide)

polymer

Poly(p-phenylene sulfide), commonly known as PPS, is a high-performance engineering thermoplastic characterized by an aromatic backbone with sulfide linkages that confer exceptional thermal stability and chemical resistance. It is widely used in demanding industrial applications including automotive underhood components, aerospace systems, electrical connectors, and oil/gas equipment where temperatures are elevated and chemical exposure is severe; engineers select PPS over commodity plastics when long-term performance in harsh environments is critical and where its superior rigidity and flame resistance provide design advantages.

automotive underhood componentsaerospace structural partselectrical connectors and housingsoil and gas downhole equipmentchemical processing equipmenthigh-temperature pump and valve components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Glass Transition Temperature(Tg)	363.1	K	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

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.

poly(p-phenylene sulfide)

Thermal Properties

Regulatory Screening

Environmental

Safety & Biocompatibility