Epoxy adhesive EP21TCHT-1
for aeronauticsfor bondingfor composites

epoxy adhesive
epoxy adhesive
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Chemical composition
Product applications
for aeronautics, for bonding, for composites, for metals, for plastics, glass, for ceramics, for rubber
Number of components
Technical characteristics
low outgassing, dimensionally stable, electrically insulating, thermally-conductive, high-temperature


EP21TCHT-1 Product Information Two component epoxy compound for high performance bonding and sealing Key Features Thermally conductive, electrically insulative Cryogenically serviceable High temperature resistant Easy to apply, paste consistency NASA low outgassing approved Withstands 1,000 hours 85°C/85% RH Master Bond EP21TCHT-1 is a two component, thermally conductive, heat resistant epoxy compound formulated to cure at ambient temperatures or more rapidly at elevated temperatures. EP21TCHT-1 has a 100:60 mix ratio by weight. Most significantly, it passes NASA low outgassing tests with exceptionally sterling numbers. EP21TCHT-1 offers an array of outstanding physical properties once cured. The system is an excellent, high strength adhesive that conducts heat, yet is electrically insulative. This epoxy can withstand rigorous thermal cycling and shocks. It is highly distinctive in that it possesses high temperature resistance as well as superlative cryogenic serviceabililty. Its actual service temperature range is from 4K to +400°F. It bonds well to a wide variety of substrates, including composites, metals, ceramics, glass and many rubbers and plastics. EP21TCHT-1 resists many chemicals including water, oils, fuels and many acids and bases. Its thermal expansion coefficient is remarkably low, as indicated below. For an epoxy system, its dimensional stability is second to none. The color of Part A and Part B is off-white.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.