Developed for coating and lining storage tanks, piping, scrubbers, and processing equipment in the chemical industry, Master Bond EP21ARHT features outstanding chemical, fuel, and acid resistance. Also widely used in electronic, electrical, and metalworking industries, it can even successfully withstand immersion to 96-98% sulfuric acid and 20% hydrochloric acid for more than a year.
This two component epoxy cures at room temperature with minimal shrinkage, or more rapidly at elevated temperatures. Once fully cured, it produces a bond strength greater than 2,200 psi. EP21ARHT can be thermally cycled over the wide temperature range of -60ºF to +400ºF. This system features superior electrical insulation capabilities with a dielectric strength of 440 volts/mil and a low coefficient of thermal expansion of 40-45x10-6 in/in/ºC. EP21ARHT bonds well to metals, ceramics, glass and many plastics.
This epoxy offers a convenient non-critical 2 to 1 mix ratio by weight. It is color coded, with part A being clear and part B amber. Master Bond Polymer System EP21ARHT is available for purchase in pint, quart, gallon, and 5 gallon container kits.