eFunda Polymers: Listing of Polyacetal (Delrin, Ultraform)
engineering fundamentals Polyacetal
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Introduction

Polyacetal, also known as Acetal, has been mass-produced since 1958.
  - It is a thermoplastic.
- Applications: Used in quality toy parts, handles and knobs, and bearing parts.
- General properties: It is lubricious, strong, and has good dimensional stability. Resistance to creep and fatigue, high abrasion and chemical resistance.
- Trade Name: Delrin, Ultraform.

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Specific Grades of Polyacetal
1. Acetal, homopolymer.
2. Acetal, copolymer.
3. Acetal, homopolymer, impact modified.
4. Acetal, copolymer, impact modified.
5. Acetal, copolymer, mineral filled.
6. Acetal, terpolymer, extrusion and blow molding grade.
7. Acetal, copolymer, 2% silicone, low wear.
8. Acetal, copolymer, UV stabilized.
9. Acetal, homopolymer, 20% glass reinforced.
10. Acetal, copolymer, 25% glass coupled.
11. Acetal, 40% long glass fiber reinforced.
12. Acetal, homopolymer, 21% PTFE filled.
13. Acetal, copolymer, 2 - 20% PTFE filled.
14. Acetal, homopolymer, 1.5% PTFE filled.
15. Acetal, homopolymer, chemically lubricated.
16. Acetal, homopolymer, UV stabilized.
17. Acetal, homopolymer, UV stabilized, 20% glass filled.
18. Acetal, homopolymer, extrusion grade.
19. Acetal, 30% carbon fiber, EMI shielding (conductive).
20. Acetal, copolymer, 10% PAN carbon fiber, 10% PTFE filled, EMI shielding (conductive).

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