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Chemically Resistant adhesives

Parker Chomerics THERM-A-GAP™ A174 Highly Conformable, Thermally Conductive Gap Filler
Categories: Ceramic; Oxide; Aluminum Oxide; Polymer; Thermoset; Silicone

Material Notes: Composition: Aluminum Oxide Filled Silicone on Fiberglass Reinforced Carrier

Description: Chomerics’ THERM-A-GAP elastomers are used to fill air gaps between components or PC boards and heat sinks, metal enclosures and chassis. The exceptional conformability of these advanced materials enables them to blanket highly uneven surfaces, transferring heat away from individual components or entire boards, and allowing chassis parts to be used as heat spreaders where space is restricted. Pioneered by Chomerics, THERM-A-GAP™ materials are used throughout the world in hundreds of applications where limited air flow, irregular surfaces and/or dense packaging conditions create the need for an efficient heat transfer mechanism. More practical and efficient than potting compounds. THERM-A-GAP™ materials allow the designer to be less concerned with component proximity to heat sinks or heat spreaders. Material Composition: THERM-A-GAP™ materials consist of an extremely soft silicone elastomer loaded with ceramic particles. They are available with aluminum foil, dielectric film, or fiberglass carriers. This material is reinforced with a think, thermally conductive fiberglass reinforced insulator that resists puncture and provides electrical isolation. Six standard thicknesses are available. Pressure-sensitive adhesive on the carrier side is standard.

Product Attributes: Good thermal performance; Most economical; Flat sheets; Light purple.

Information provided by Chomerics

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
Specific Gravity 2.30 g/cc2.30 g/ccASTM D792
Thickness 460 - 560 microns18.1 - 22.0 mil
 900 - 1100 microns35.4 - 43.3 mil
 1620 - 1980 microns63.8 - 78.0 mil
 2250 - 2750 microns88.6 - 108 mil
 3050 - 3550 microns120 - 140 mil
 3850 - 4350 microns152 - 171 mil
 4850 - 5350 microns191 - 211 mil
Deformation  8.0 %
@Thickness 1.78 mm,
Pressure 0.0345 MPa
8.0 %
@Thickness 0.0700 in,
Pressure 5.00 psi
 16 %
@Thickness 1.78 mm,
Pressure 0.103 MPa
16 %
@Thickness 0.0700 in,
Pressure 15.0 psi
 24 %
@Thickness 1.78 mm,
Pressure 0.214 MPa
24 %
@Thickness 0.0700 in,
Pressure 31.0 psi
 32 %
@Thickness 1.78 mm,
Pressure 0.276 MPa
32 %
@Thickness 0.0700 in,
Pressure 40.0 psi
 40 %
@Thickness 1.78 mm,
Pressure 0.427 MPa
40 %
@Thickness 0.0700 in,
Pressure 62.0 psi
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A <= 15<= 15ASTM D2240
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity 1.00 W/m-K6.94 BTU-in/hr-ft²-°FModified ASTM D5470
Maximum Service Temperature, Air 200 °C392 °F
Minimum Service Temperature, Air -55.0 °C-67.0 °F
Flammability, UL94 V-0
@Thickness 3.00 mm
V-0
@Thickness 0.118 in
 
Processing PropertiesMetricEnglishComments
Shelf Life 12.0 Month12.0 MonthAdhesive
 
Descriptive Properties
Adhesive Peel Strength16 oz/in
ColorLight Purple

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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PCHOME314 / 131024

Chemically Resistant adhesives

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