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  • EP30HT Epoxy System
Sep 2006
Master Bond Inc.Request Info
Medium Viscosity, Optically Clear System Resists up to 400°F
HACKENSACK, N.J., Sept. 20, 2006 -- Master Bond Inc. has recently developed a new medium-viscosity, two-component epoxy adhesive/sealant, coating and casting compound called EP30HT. It is formulated to cure at room temperature or more rapidly at elevated temperatures. EP30HT features superior dimensional stability, superb optical clarity and high temperature resistance up to 400 °F. It conforms to Title 21, US Code of Federal Regulation, FDA Chapter 1, Section 175.105 and 175.300 for food applications.

MasterBondEP30HT.jpgMaster Bond EP30HT has a 4-to-1 mix ratio by weight. It is 100 percent reactive and does not contain any solvents or volatiles. Its moderate viscosity and exceptionally low shrinkage -- 0.0003 inches -- make it well suited for casting. Adhesion to metals, glass, ceramics, woods, vulcanized rubbers and many plastics is excellent. The hardened compound has superior electrical insulation properties.

EP30HT will resist exposure to water, oil and most organic solvents. It has a refractive index of 1.54 and a spectural transmittance (3100-9000 Å) of 97 percent. Its dielectric strength is 440 volts/mil and its volume resistivity is >1015 ohm cm. The color of both Part A and Part B is clear.

EP30HT is available for use in half-pint, pint, quart, gallon and 5-gallon container kits. It is also available in easy to use, convenient syringe applicators.


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An intermolecular substance that serves to hold materials together. Two types are used in the optical industry: one, which must be transparent and colorless, to cement lenses together; and a general-purpose adhesive for bonding prisms and other glass parts to their metallic supports.
Common name for a variety of adhesives used for lens bonding, fiber optic splicing and other photonics applications. The term is actually a prefix denoting the presence of an epoxide group in a molecule.
Pertaining to optics and the phenomena of light.
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