polyoxymethylene
polymerPolyoxymethylene (POM), commonly known as acetal or Delrin®, is an engineering thermoplastic characterized by a linear polymer chain of repeating -CH₂-O- units. It offers excellent dimensional stability, low creep, and high stiffness, making it a preferred choice over general-purpose plastics in precision applications where tight tolerances and mechanical consistency are critical. The material is widely used in automotive fuel systems, precision gears and bearings, plumbing fittings, and consumer appliances, particularly where repeated flexing, wear resistance, or long-term dimensional accuracy cannot be compromised.
automotive fuel system componentsprecision gears and sprocketsbearing and bushing applicationsplumbing and fluid handling fittingssnap fits and hingesfood contact components
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | °F | — | — |
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.