Master Bond EP41S-6 is a two part epoxy system that meets UL 1203 for Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations. The rationale for this test is to prevent explosions and dust ignitions in industrial settings. The 1203 UL designation is specifically for a sealing compound for use in hazardous locations conforming with Class I, Groups A, B, C and D; Class II, Groups E, F, and G Hazardous Locations.
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Master Bond EP3RR-80 is a one part epoxy that is particularly compatible for sealing, potting and encapsulation applications. This system, which is not premixed and frozen, has unlimited working life at room temperature. Unlike typical one part epoxies, EP3RR-80 will cure in 45-50 minutes at 175-180°F, or in 25-30 minutes 250°F. Although optimal properties are obtained with the higher temperature cure, the 175-180°F cure provides very good physical strength and electrical insulation values as well. EP3RR-80 has a moderate viscosity with excellent flow.