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Rulon Bearings

Parker Chomerics CHO-FORM 5538 Conductive Form-In-Place Gaskets
Categories: Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE); Silicone

Material Notes: Description: A range of conductive particle technologies combined with thermoset and RTV silicone systems provide a material selection for most opportunities. Multiple filler grades balance material cost versus performance and can provide low cost alternatives for less demanding applications. Chomerics corrosion resistant materials inherently provide protection against galvanic activity. They may eliminate the need for nickel or tin plating and or secondary environmental gaskets. Chomerics general purpose materials exhibit excellent electrical and mechanical properties on metallic and shield plastic housing. Chomerics silver filled materials provide high shielding and conductivity critical for inter-compartmental shields. CHOFORM delivers a greater deflection range, lower deflection forces & improved reliability.

Features: Lower deflection forces and a broad deflection range, Corrosion resistant materials can eliminate plating or secondary environmental gasket, Good adhesion to many substrates, Supply chain management providing ongoing logistics, Low cost and rapid prototyping and Corrosion Resistant, Small Bead.

Information provided by Chomerics

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Physical PropertiesMetricEnglishComments
Specific Gravity 2.20 g/cc2.20 g/ccASTM D792
Deformation 30 %30 %49.8 N/cm
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 6565ASTM D2240
Tensile Strength at Break 2.24 MPa325 psiASTM D412
Elongation at Break 65 %65 %ASTM D412
Compression Set 45 %
@Temperature 70.0 °C,
Time 79200 sec
45 %
@Temperature 158 °F,
Time 22.0 hour
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 0.050 ohm-cm0.050 ohm-cmCHO MAT-1009
Shielding Effectiveness >= 60 dB
@Frequency 200 - 12000 Hz
>= 60 dB
@Frequency 200 - 12000 Hz
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 85.0 °C185 °F
Flammability, UL94 V-0V-0
 
Processing PropertiesMetricEnglishComments
Cure Time  240 min
@Temperature 22.0 °C
4.00 hour
@Temperature 71.6 °F
50% RH; Handling Time
 2880 min
@Temperature 22.0 °C
48.0 hour
@Temperature 71.6 °F
50% RH; Full Cure
Tack-Free Time 18.0 min
@Temperature 22.0 °C
0.300 hour
@Temperature 71.6 °F
50% RH
Shelf Life 5.00 Month
@Temperature 17.0 - 27.0 °C
5.00 Month
@Temperature 62.6 - 80.6 °F
 
Descriptive Properties
Adhesion9 N/cmTrivalent Chromate Coating on Al, Chomerics WI 1038
Cure SystemMoisture
FillerNi/C
Galvanic Corrosion10 mgResistance Against Aluminum; CHO TM-100
Number of Components1
Resin SystemSilicone

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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PCHOME089 / 28311

Aluminum Castings

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