Delrin vs. Rulon Machining

Comparison of Delrin and Rulon Property Values

Acetal Homopolymer Acetal Copolymer
0.25 0.2
10,000 9,800
420 370,000
6.8 6.1
-- --
Material
Water Absorption Rating
Tensile Strength
Flexural Modulus
Coefficient of Linear Thermal Expansion
Dielectric Strength
Rulon J Rulon 641 Rulon AR Rulon LR
0 0 0 0
2,000 2,000 2,000 1,500
-- -- -- --
varies varies varies varies
200 -- 0 - 5000 - 500

Material Properties

  • Low moisture absorption
  • High mechanical strength and rigidity
  • Machinability
  • Self-lubricating design
  • Low friction
  • Temperature and chemical resistance
  • Flexible material design.
  • Low-weight/high-strength ratio
  • Dimensional stability in liquids
  • Machinability

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