Poly(trimethylene oxide)

polymer

Poly(trimethylene oxide) is a synthetic elastomeric polymer belonging to the polyether family, characterized by a repeating trimethylene oxide unit in its backbone. It is primarily employed in high-performance elastomer applications where superior low-temperature flexibility and chemical resistance are critical, particularly in automotive seals, hydraulic hose components, and specialty industrial gaskets. This material offers advantages over conventional rubbers in applications requiring resistance to oils, fuels, and polar solvents, making it a preferred choice for demanding seal and damping applications in engine compartments and fluid systems.

automotive seals and gasketshydraulic system componentsfuel and oil-resistant elastomerslow-temperature flexible applicationsindustrial hose linersvibration damping elements

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Glass Transition Temperature(Tg)	195	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(trimethylene oxide)

Thermal Properties

Regulatory Screening

Environmental

Safety & Biocompatibility