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Thermal-Bond 195 Thermally Conductive Electrically Insulating Compound

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Product Description

THERMALLY CONDUCTIVE ELECTRICALLY INSULATING COMPOUND


PRODUCT DESCRIPTION:

Thermal-Bond 195 Thermally Conductive Electrically Insulating Compound is a two component, thermally conductive epoxy system recommended for staking transistors, diodes, resistors, integrated circuits and other heat sensitive components to printed circuit boards. This adhesive develops strong, durable, high impact bonds at room temperature which improve heat transfer while maintaining electrical insulation.

Thermal-Bond 195 Thermally Conductive Electrically Insulating Compound bonds readily to itself and to metals, silica, alumina, sapphire and other ceramics, glass, plastics and many other materials, because its coefficient of thermal expansion provides a good match for those materials over a fairly wide temperature range.

Fully cured Thermal-Bond 195 Thermally Conductive Electrically Insulating Compound provides excellent resistance to salt solutions, mild acids and alkalis, and many other chemicals including petroleum solvents, lubricating oils, and alcohol.

This adhesive complies with the requirements of NASA Outgassing Specification when tested according to ASTM E-595-90.

GENERAL PROPERTIES

Appearance White
Cure Type Heat cure or Room Temperature
Benefits Strong
Durable
High-impact bonds
Fully cured
Excellent resistance to many chemicals
Mix Ratio by weight 100:15 / Resin:Hardener
Substrates metals, silica, alumina, sapphire and other ceramics, glass, plastics and many other materials
Typical Applications Extremely sensitive thermal cooling applications
Shelf Life 1 Year

CURE SCHEDULE

2 4 Hours @ 65C
24 Hours @ 25C

MISC PROPERTIES

CTE, linear 22.2 in/in-F @ RT
Hardness, Shore D 80
Adhesive Bond Strength 1700 psi

UNCURED PROPERTIES

Viscosity @ 25 C, 77.0 F 5000 cP
Specific Gravity, mixed 1.30 g/cc
Pot Life 60 minutes
Solid Content 100%
Outgassing, NASA, %CVCM 0.02 (3 hrs @ 65C)
Outgassing, NASA, %TWL 0.6 (3 hrs @ 65C)

THERMAL PROPERTIES

Thermal Conductivity 13.9 BTU-in/hr-ft-F
2.00 W/m-K
Glass Transition Temp, Tg 54.0 C, 129 F
Maximum Service Temperature, Air 115 C, 239 F
Minimum Service Temperature, Air -70.0 C, -94.0 F
Operating Temperature -40C to 175C

GENERAL INFORMATION:

For safe handling information on this product, consult the Material Safety Data Sheet, (MSDS).

HOW TO USE:

1) Carefully clean and dry all surfaces to be bonded.

2) Apply Thermal-Bond 195 Thermally Conductive Electrically Insulating Compound completely mixed adhesive to the prepared surfaces, and gently press these surfaces together. Contact pressure is adequate for strong, reliable bonds; however, maintain contact until adhesive is completely cured.

3) Some separation of components is common during shipping and storage. For this reason, it is recommended that the contents of the shipping container be thoroughly mixed prior to use.

4) Some ingredients in this formulation provided may crystallize when subjected to low temperature storage. A gentle warming cycle of 52C for 30 minutes prior to mixing components may be necessary. Crystallized epoxy components do not react as well as liquid components and should be re-dissolved prior to use for best results.

AVAILABILITY:

This epoxy can be supplied in various different packages.

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