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Elmet Technologies

Wacker Elastosil® LR 3004/50 A/B Liquid Silicone Rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)

Material Notes: Liquid silicone rubbers of the ELASTOSIL® LR 3004 series are paste-like, easily-pigmentable two component compounds with very short curing times. Their vulcanizates are noted for their high transparency and excellent mechanical and electrical properties.

Properties: Narrow Shore hardness range from 47 to 53 Shore A (50 ± 3 Shore A). 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: These grades are particularly suitable for the economical production of large series of injection molded articles. Parts made from ELASTOSIL® LR 3004 can be used for technical applications. These articles are also suitable for use in conjunction with foodstuffs. Postcured parts can be used for food contact applications and are suitable for use under the Recommendation "XV. Silicones" of the BfR and FDA § 177.2600 under observance of any given limitations on extractable and volatile substances.

Information provided by Wacker Chemie AG.

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 1.13 g/cc0.0408 lb/in³DIN EN ISO 1183-1 A
Viscosity  360000 cP
@Shear Rate 10.0 1/s
360000 cP
@Shear Rate 10.0 1/s
DIN 53019
 810000 cP
@Shear Rate 0.900 1/s
810000 cP
@Shear Rate 0.900 1/s
DIN 53019
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 5050DIN 53505
Tensile Strength at Break 10.0 MPa1450 psiDIN 53504 S 1
Elongation at Break 480 %480 %DIN 53504 S 1
Rebound 64 %64 %DIN 53512
Tear Strength 29.0 kN/m165 pliASTM 624 B
Compression Set 13 %
@Temperature 175 °C,
Time 79200 sec
13 %
@Temperature 347 °F,
Time 22.0 hour
post cure 6h/200°C; DIN ISO 815-B
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 5.00e+15 ohm-cm5.00e+15 ohm-cmDIN IEC 93
Dielectric Constant 2.8
@Frequency 50 Hz
2.8
@Frequency 50 Hz
DIN VDE 0303
Dielectric Strength 23.0 kV/mm
@Thickness 1.00 mm
584 kV/in
@Thickness 0.0394 in
DIN IEC 243-2
Dissipation Factor 0.00020
@Frequency 50 Hz
0.00020
@Frequency 50 Hz
DIN VDE 0303
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 210 °C410 °Fwith heat stabilizer
Minimum Service Temperature, Air -55.0 °C-67.0 °F
 
Optical PropertiesMetricEnglishComments
Transmission, Visible 90 %90 %"Transparent" but manufacturer does not quantify.
 
Processing PropertiesMetricEnglishComments
Cure Time 5.00 min
@Treatment Temp. 165 °C
0.0833 hour
@Treatment Temp. 329 °F
in press, postcuring for 4h/200°C (in ventilated air)
 
Descriptive Properties
Appearancetransparent

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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