High Strength Two Part Epoxy System


Master Bond EP30HV, a two component epoxy, features wide  applicability in the electronic, electrical, computer, aerospace, automotive,  optical, fiber optic, medical and chemical industries. Formulated for bonding,  sealing, coating and casting applications where high strength and optical  clarity are needed, it complies with FDA Chapter 1, Sections 175.105 for food  applications. EP30HV offers high light transmittance from 350-2,400 nm and  has a refractive index of 1.55 at room temperature. Its enhanced electrical and  thermal insulation properties include a volume resistivity over 1015 ohm-cm,  a dielectric strength of 440 volts/mil and a low coefficient of thermal  expansion. 

With a low mixed viscosity of 4,000 cps, this system is often used  in small potting and encapsulation applications, especially for electronic or  optical assemblies. Featuring a forgiving four to one mix ratio by weight,  EP30HV is easy to handle and cures at room temperature in 24 hours or faster at  elevated temperatures. This epoxy produces high strength bonds that have a  tensile strength exceeding 9,000 psi and a compressive strength greater than  14,000 psi at ambient temperatures. Linear shrinkage is low at 0.0003  inches/inch. 

It also resists a wide variety of chemicals including water, oils,  acids, bases and many solvents. Serviceable over the wide temperature range of -60°F to  +300°F, EP30HV bonds well to metals, glass, ceramics, wood, rubbers, and many  plastics. It is available for use in pint, quart, gallon and five gallon  container kits. This two part system has a shelf life of up to one year if stored  in its original, unopened containers.


  • for bonding,  sealing, coating and casting applications
  • low mixed viscosity of 4,000 cps 
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