Two Component, Epoxy for Potting, Encapsulation, Coating, and Sealing Applications

Master Bond® EP121CL-LO is a two component, high performance epoxy resin system that Key Features very low viscosity and an extraordinary long open time at room temperature of at least 2-3 days. It does, however, require oven curing. The mix ratio is a relatively easy to use 100:80, by weight. A typical cure schedule is 2-3 hours at 250ºF followed by 5-8 hours at 300ºF with a 2 hour or longer post cure at 350ºF, although, a number of variations are possible. It has excellent adhesion to a wide variety of substrates including metals, composites, glass, ceramics and many rubbers and plastics. EP121CL-LO is particularly prominent for applications involving rigorous electrical insulation properties. Another attractive feature is its excellent physical strength profile. It offers superior chemical resistance to water, oils, acids, bases, fuels and many solvents. The service temperature range is -80ºF to +500ºF. EP121CL-LO is a specialty type system that is used in a variety of aerospace, electronic and OEM type applications.