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Sorbothane Polyurethane Damping Material, 70 Durometer
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced; Rubber or Thermoset Elastomer (TSE)

Material Notes: Sorbothane® is a thermoset, polyether-based polyurethane viscoelastic material that combines high energy absorption with faultless memory. Sorbothane turns mechanical energy into heat. As the material is deformed, the friction created at the molecular level is generated into heat. High hysteresis is then formed. The energy is moved perpendicularly away from its original plane and is pushed close to 90° out of phase from its original disturbing force.

Sorbothane is used in shock/vibration mounts, stud mounts, and grommets/bushings in diverse fields such as electronics/audio equipment, noise abatement, insoles, protective sports gear, and anti-vibration gloves and wraps.

Information provided by Sorbothane Inc

Available Properties
  • Density
  • Hardness, Shore OO
  • Tensile Strength, Ultimate, ASTM D412 80, 500 mm/min
  • Tensile Stress at Strain, ASTM D412 80
  • Elongation at Break, ASTM D412 80, 500 mm/min
  • 100% Modulus, ASTM D 412-06a
  • 200% Modulus, ASTM D 412-06a
  • 300% Modulus, ASTM D 412-06a
  • Compressive Yield Strength, 50% strain; ASTM D575 Method A
  • Compressive Yield Strength, ASTM D 575-91, Method A
  • Resilience, Lupke rebound test
  • Rebound, Resilience Rebound Height. ASTM D 2632-92. Modified for the effects of tackiness
  • Bulk Modulus
  • Coefficient of Friction, on polished steel; ASTM D1894
  • Coefficient of Friction, Static, on polished steel; ASTM D1894
  • Tear Strength Test, psi per ASTM 624 with 1 mm nick
  • Compression Set, ASTM D395, 25% compression
  • Dielectric Strength, BS 903
  • CTE, linear
  • Thermal Conductivity
  • Maximum Service Temperature, Air, Optimum performance range
  • Minimum Service Temperature, Air, optimum performance range
  • Glass Transition Temp, Tg
  • Flammability, UL94
Property Data

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