PTMO

polymer

PTMO (polytetramethylene oxide) is a synthetic elastomeric polyether polymer known for its exceptional flexibility and resilience, making it suitable for applications requiring large deformations and recovery. It is commonly used in sealing applications, flexible tubing, and vibration-damping components across automotive, industrial equipment, and consumer product industries, where its combination of low-temperature flexibility and chemical resistance provides advantages over rigid plastics and natural rubbers. Engineers select PTMO when applications demand high elongation capacity paired with moderate structural stiffness and resistance to ozone and weathering.

elastomer seals and gasketsflexible tubing and hosesvibration dampingautomotive componentsdynamic strain applications

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Elongation at Break(εf)
-
Ultimate Tensile Strength(σUTS)
Pa
Young's Modulus(E)
Pa
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Glass Transition Temperature(Tg)
K
Melting Point / Solidus(Tm)
K
Maximum Service Temperature(Tmax)
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.