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Elmet Technologies

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
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.30 g/cc0.0470 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore OO 7070
Tensile Strength, Ultimate 1.07 MPa155 psi500 mm/min; ASTM D412 80
Tensile Stress at Strain 0.490 MPa
@Strain 100 %		71.1 psi
@Strain 100 %		ASTM D412 80
Elongation at Break 300 %300 %500 mm/min; ASTM D412 80
100% Modulus 0.400 MPa
@Strain 100 %		58.0 psi
@Strain 100 %		ASTM D 412-06a
200% Modulus 0.779 MPa
@Strain 200 %		113 psi
@Strain 200 %		ASTM D 412-06a
300% Modulus 1.08 MPa
@Strain 300 %		156 psi
@Strain 300 %		ASTM D 412-06a
Compressive Yield Strength 1.31 MPa190 psi50% strain; ASTM D575 Method A
 0.207 MPa
@Strain 20 %		30.0 psi
@Strain 20 %		ASTM D 575-91, Method A
Resilience 1515Lupke rebound test
Rebound 25 %25 %Resilience Rebound Height. ASTM D 2632-92. Modified for the effects of tackiness
Bulk Modulus 4.30 GPa624 ksi
Coefficient of Friction 2.52.5on polished steel; ASTM D1894
Coefficient of Friction, Static 4.14.1on polished steel; ASTM D1894
Tear Strength Test 2929psi per ASTM 624 with 1 mm nick
Compression Set 4.5 %
@Temperature 22.8 °C,
Time 259000 sec		4.5 %
@Temperature 73.0 °F,
Time 72.0 hour		25% compression; ASTM D395
 
Electrical PropertiesMetricEnglishComments
Dielectric Strength 13.1 kV/mm333 kV/inBS 903
 
Thermal PropertiesMetricEnglishComments
CTE, linear 132 µm/m-°C
@Temperature -50.0 - 100 °C		73.3 µin/in-°F
@Temperature -58.0 - 212 °F
Thermal Conductivity 0.390 W/m-K2.71 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air <= 82.0 °C<= 180 °FOptimum performance range
Minimum Service Temperature, Air >= -29.0 °C>= -20.2 °Foptimum performance range
Glass Transition Temp, Tg -40.0 °C-40.0 °F
Flammability, UL94 V-2V-2
 
Descriptive Properties
Bacterial ResistanceNo GrowthASTM G 22
Fungal ResistanceNo GrowthASTM G 21-09
Heat AgingStable72 hours at 158°F

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PSORB2 / 68440

Ensinger PEI




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