Material detail · DMX-EN-203
Acetal (POM — Polyoxymethylene)
Acetal, commonly known by the trade name Delrin®, is prized for dimensional stability, low friction, and excellent machinability — the standard choice for precision gears, bushings, and snap-fit components. Available as copolymer (POM-C) or homopolymer (POM-H), with food-grade and metal-detectable variants for regulated environments.
- Family code
- DMX-EN-203
- Grades listed
- 6
- Stock forms
- Rod 5–250 mm
- Docs
- CoC · CoA on request
Grades carried
Grade selection
Grades are listed with the duty each is normally specified against. Food-contact status applies to the individual grade, not to the material family.
6 grades listed
| Grade | Notes | Contact status |
|---|---|---|
| Acetron® Food Grade Blue 50 | Food-contact, POM-C | Food contact |
| Sustarin® C MDT | Metal-detectable, food-processing safety | Food contact |
| Delrin® Acetal Homopolymer | High stiffness, precision parts | Industrial |
| TECAFORM® AH FG Blue | Food-grade acetal copolymer | Food contact |
| Pomalux® Acetal Copolymer | General-purpose POM-C | Industrial |
| Turcite® A / X | Machine way surfaces | Industrial |
Trade names are the property of their respective manufacturers and are listed to identify the grades we stock. Availability varies by form and lot — confirm the current stock position before releasing a drawing to production.
Typical properties
Performance envelope
Typical values for unfilled grades at 23 °C. These are indicative for grade selection, not specification limits — certificates of analysis are issued against the shipped lot.
Common applications
- Precision gears and bearings
- Food-processing machine components
- Conveyor parts
- Plumbing fittings
- Snap-fit assemblies
Compliance
Standards available on selected grades
Damrix Plastics is a distributor. The standards below are held by the certified manufacturing partners in our supply chain and apply to specific grades and lots — not to the family as a whole, and not as a Damrix certification.
Every shipment is released with a certificate of conformance and lot-level traceability. Certificates of analysis, FDA food-contact statements and biocompatibility summaries are issued on request against the specific grade supplied.
Common questions
Acetal specification questions
The questions raised most often during grade selection. If your application sits outside these answers, send the operating conditions and we will confirm the grade.
- Is Delrin the same as Acetal?
- Delrin is a DuPont trade name for acetal homopolymer (POM-H); "acetal" and "POM" refer to the broader material family, which also includes copolymer (POM-C) formulations.
- Which is better, copolymer or homopolymer acetal?
- Homopolymer offers slightly higher stiffness and strength; copolymer offers better chemical resistance and consistency in thick sections. Selection depends on the application.
- Is acetal food safe?
- Specific food-grade acetal formulations meet FDA food-contact requirements — confirm the grade before specifying for food-processing equipment.
Next step
Confirm a Acetal grade for your application
Send the contact status, service temperature, chemical exposure and load duty. We respond with the qualifying grades, the documentation available for each and the current stock position.