Master Bond EP62-1AO is a two-part epoxy adhesive and sealant with an exceptionally long working life of between 12 to 14 hours at ambient temperature for a 100 gram mass. This makes it beneficial when bonding and sealing large or intricate parts that may require ample time for mixing and applying.
This material has a high-strength profile with a tensile modulus of 600,000 to 650,000 psi and a tensile strength of 5,000 to 6,000 psi. The service temperature range is -60° to +450° F and it offers a glass transition temperature of 120 to 125° C.
EP62-1AO is both electrically insulating and thermally conductive with a thermal conductivity value of nine or 10 BTU•in/(ft2•hr•°F), or 1.30-1.44 W/(m•K). Its chemical resistance profile is robust, particularly when compared to other thermally conductive epoxies.
The adhesive can withstand a wide range of acids, bases, and solvents. The viscosity of the mixed compound offers a thixotropic paste consistency. There are several cure schedule options to choose from — all of which require a relatively low heat activation. Additional post curing for two to four hours at 200 to 300° F is recommended to obtain optimal performance properties.
It is available in 30 cc syringe kits, 1/2 pint kits, pint kits, and quart kits. The color of Part A is off white and Part B is dark brown.