Tra-Con Tra-Bond K5NA Ablative Thermal Epoxy Compound

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Tra-Con Tra-Bond K5NA Ablative Thermal Epoxy Compound
Categories:	Polymer; Adhesive; Thermoset; Epoxy
Material Notes:	TRA-BOND K5NA is a three-part, ablative and thermally insulating epoxy compound used in aerospace applications. This smooth, trowellable system is specified by NASA for the Space Shuttle`s solid rocket boosters for close-out and patching of the boosters` thermal protection systems. It is also used for void filling and protecting wires, tubing and other surface protrusions on hypersonic re-entry bodies, nose cones and aircraft engines. TRA-BOND K5NA is impact resistant which makes it an excellent choice for lightweight casting requirements. TRA-BOND K5NA develops strong bonds to most all substrates. It maintains excellent dimensional stability over a wide temperature range and provides protection to weathering, ozone and moisture. Information provided by Tra-Con Inc.
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Physical Properties	Original Value	Comments

Specific Gravity	0.600 g/cc	Mixed
Solids Content	100 %	Reactive Solids Content

Mechanical Properties	Original Value	Comments
Hardness, Shore D	15
Tensile Strength, Yield	100 psi
Izod Impact, Notched	100 ft-lb/in

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.100 W/m-K

Processing Properties	Original Value	Comments
Cure Time	2.00 - 4.00 hour @Temperature 65.0 °C
	24.0 hour @Temperature 25.0 °C
Pot Life	30 min

Descriptive Properties
Color	Light Brown
Heat of Combustion BTU/lbm	1450
Mix Ratio, parts by weight	100/75/25	Resin/Hardener/Part C
Thermal Diffusivity ft2/hr	0.0031

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PTRAC301 / 71229

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