Delrin vs. PVC Machining

Comparison of Delrin and PVC 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
PVC CPVC
0 0.04
7,500 8,200
481,000 410,000
6.1 3.7
544 1,250

Material Properties

  • Low moisture absorption
  • High mechanical strength and rigidity
  • Machinability
  • Excellent insulating properties
  • Low permeability
  • Fire resistant
  • Durable and light
  • Good electrical properties
  • Chemically inert
  • Tasteless, odorless and nontoxic
  • Dimensional stability
  • High impact strength

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