PSF

polymer

Polysulfone (PSF) is an engineering thermoplastic known for its high stiffness, thermal stability, and transparency, making it suitable for demanding applications requiring both mechanical strength and heat resistance. It is widely used in aerospace components, medical devices, automotive interiors, and transparent housings where long-term performance at elevated temperatures is critical. PSF is chosen over commodity polymers when superior dimensional stability, chemical resistance, and retention of properties in high-temperature environments are necessary, though it typically costs more and offers lower elongation than ductile alternatives.

aerospace window componentsmedical device housingshigh-temperature valve bodiesautomotive under-hood partstransparent industrial coverschemical-resistant tubing

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Elongation at Break(εf)
-
Ultimate Tensile Strength(σUTS)
ksi
Young's Modulus(E)
ksi
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Glass Transition Temperature(Tg)
°F
Melting Point / Solidus(Tm)
°F
Maximum Service Temperature(Tmax)
°F
Thermal Conductivity(k)
BTU/(hr·ft·°F)
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
eV
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Refractive Index(n)
-
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.
PSF — Properties & Data | MatWorld