FR-4 vs. Rulon Machining

Comparison of FR-4 and Rulon Property Values

FR-4
0.1
45,000
2,700
0.66
--
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

  • Extremely high mechanical strength
  • Good dielectric loss properties
  • Good electrical strength properties
  • 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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