Acetal vs. PEEK Machining

Comparison of Acetal and PEEK Property Values

Acetal Homopolymer Acetal Copolymer
0.25 0.2
10,000 9,800
420 370,000
6.8 6.1
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Material
Water Absorption Rating
Tensile Strength
Flexural Modulus
Coefficient of Linear Thermal Expansion
Dielectric Strength
PEEK Unfilled PEEK 30% Glass Filled
0.5 0.11
14,000 24,620
590,000 1,450,000
2.6 1.2
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Material Properties

  • Low moisture absorption
  • High mechanical strength and rigidity
  • Machinability
  • Good chemical resistance
  • Good dimensional stability
  • High abrasion resistance
  • Low moisture absorption
  • Outstanding chemical resistance
  • Low coefficient of friction
  • Excellent wear characteristics
  • Machinability

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