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Rulon Bearings

Wacker Elastosil® LR 3842/60 A/B Liquid Silicone Rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)

Material Notes: Low oil-bleeding liquid silicone rubbers of the ELASTOSIL® LR 3842 series are paste-like, readily pigmentable two-component products with short curing times. Shortly after the curing process, a slight thin oil film with lubricating properties forms on the surface of the vulcanizates. The vulcanizates are opaque, have good mechanical and electrical properties and very low compression sets.

Properties: The products can be used within a temperature range of - 55 °C to + 210 °C. The addition of heat stabilizers at service temperatures of more than 180 °C is recommended.

Application: ELASTOSIL® LR 3842/60 A/B is particularly suitable for the economical production of weather packs in the automotive industry. They are increasingly being used to produce cable and connector seals. As an oil film forms, seals can be fitted easily and fully automatically, even when tolerances are narrow.

Information provided by Wacker Chemie AG.

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Physical PropertiesMetricEnglishComments
Density 1.14 g/cc0.0412 lb/in³ISO 1183-1 A
Viscosity 2.30e+6 cP
@Shear Rate 0.900 1/s
2.30e+6 cP
@Shear Rate 0.900 1/s
DIN 53019
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 6060DIN 53505
Tensile Strength at Break 10.2 MPa1480 psiDIN 53504 S 1
Elongation at Break 450 %450 %DIN 53504 S 1
Tear Strength 34.0 kN/m194 pliASTM 624 B
Compression Set  8.0 %
@Temperature 175 °C,
Time 79200 sec
8.0 %
@Temperature 347 °F,
Time 22.0 hour
post cure, 1h/200°C; DIN ISO 815-B
 14 %
@Temperature 175 °C,
Time 79200 sec
14 %
@Temperature 347 °F,
Time 22.0 hour
DIN ISO 815-B
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 210 °C410 °Fwith heat stabilizer
Minimum Service Temperature, Air -55.0 °C-67.0 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 5.00 min
@Treatment Temp. 165 °C
0.0833 hour
@Treatment Temp. 329 °F
in press
 
Descriptive Properties
Appearanceopaque
Fluid content (%)2

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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