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Rulon Bearings

Saint-Gobain Korel® K30-25 Soft Micro-cellular Polyurethane Foam
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane Foam, Unreinforced

Material Notes: Description: The Korel® series micro-cellular polyurethane foams are offered in a broad range of properties, making them ideal for a variety of gasketing and energy absorption needs. Korel® microcellular foams are categorized by degree of deflection force. By varying the modulus and density, Saint Gobain Performance Plastics has developed this series of materials that meets the demands of design engineers today. All Korel fians are available with an aggressive acrylic adhesive on one side to facilitate placement. Korel K30 foams are soft, conformable, low deflection, urethane foams offering excellent compression set resistance and low out-gassing that exceeds fogging requirements. K30 is ideal for open/close applications.

FEATURES/BENEFITS:
  • Excellent compression set resistance
  • Highly resilient (will not collapse)
  • Dissipates stresses
  • Resistant to moisture and most chemicals
  • Conformable and flexible even in extreme environmental conditions
  • Easy to achieve intricate die-cut parts
  • Aggressive acrylic adhesive (optional) facilitates assembly
  • Available cast on to polyester film for stability and low deformation
Typical Applications: Cellular telephones, electrical enclosures, electronic gasketing, vibration damping, cushioning, acoustical control, bumpers, instrument panels, spacers.
Specification Notes: Passes Fogging Test SAE-J 1756, 3 hrs. at 212°F (100°C). All data based on a 0.045 inch test sample.(Available in multiple thicknesses.)
Information provided by Saint Gobain Performance Products.

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Physical PropertiesMetricEnglishComments
Density 0.401 g/cc0.0145 lb/in³ASTM D1667
Water Absorption 15 %15 %% by weight; ASTM D3574
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore O 2020ASTM D2240
Tensile Strength, Yield 0.689 MPa100 psiASTM D3574
Elongation at Break 340 %340 %ASTM D3574
Tensile Modulus 0.000276 GPa0.0400 ksiASTM D3574
Compressive Strength 0.0414 MPa6.00 psiCompression Deflection, Value given for 12.7 mm/min, 25% deflection.; ASTM D3574 Test C
Compressive Modulus 0.0000552 GPa0.00800 ksiForce to Compress, Value given for 25% compression; ASTM D1667
Tear Strength 2.63 kN/m15.0 pliInitial Tear Strength; ASTM D624 Die C
Compression Set  <= 3.0 %
@Temperature 22.8 °C
<= 3.0 %
@Temperature 73.0 °F
Constant Deflection; ASTM D 3574 Test D
 <= 7.0 %
@Temperature 70.0 °C
<= 7.0 %
@Temperature 158 °F
Constant Deflection; ASTM D 3574 Test D
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 2.00e+12 ohm-cm2.00e+12 ohm-cm
Surface Resistivity per Square 9.10e+13 ohm9.10e+13 ohm
Dielectric Strength 1.89 kV/mm48.0 kV/inASTM D149
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity 0.0865 W/m-K0.600 BTU-in/hr-ft²-°FASTM E1530
Maximum Service Temperature, Air 70.0 °C158 °FConstant use
 121 °C250 °FIntermittent
 
Descriptive Properties
Standard ColorBlack

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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