Master Bond EP38CL is a lower viscosity, optically clear two component epoxy system for high performance bonding, coating, sealing and small encapsulations, featuring splendid toughness and durability. The mix ratio is 100:60 by weight. This system has easy handling with a reasonable working life of 40-50 minutes. Its physical appearance is particularly striking having wonderful optical clarity and gloss. Perhaps its most appealing and unique attribute is its toughness. Even though EP38CL has a relatively higher Shore D hardness its special blend confers upon it a “toughness”. Specifically, it possesses superior impact resistance, thermal cycling capabilities as well as the ability to withstand mechanical shock better than typical epoxies that are higher on the Shore D scale.
Also, EP38CL bonds well to a wide variety of substrates, such as metals, ceramics, glass, composites, many rubbers and plastics. Its electrical insulation properties are solid. The service temperature range is -100°F to +250°F. EP38CL is used in optical, aerospace, opto-electronic and specialty OEM applications, particularly when a rigid system with superior toughness is desirable.
Product Advantages
Easy to apply by roller or brush. Convenient working life
Extraordinary toughness, capable of withstanding aggressive thermal cycling
Appealing electrical insulation properties
Imposing optical clarity
Reliable adhesion to a variety of substrates
Commendable physical strength properties as well as low shrinkage upon curing
