EP21AR is a two-component epoxy that can withstand harsh acidic environments, including prolonged immersion in 96–98% sulfuric acid and 36% hydrochloric acid (over a year). It can used for coating, lining, bonding and sealing applications, and is an excellent electrical insulator. Serviceable between –60 and 275ºF, EP21AR produces high-strength, abrasion-resistant bonds, says the company, and is easy to use, with a 2 to 1 mix ratio by weight. — MasterBond Inc., Hackensack, N.J.
An epoxy with exceptional chemical resistance
| By Scott Jenkins