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Master Bond EP21NDCL is a two component epoxy system that cures optically clear in thin sections, even though part A is translucent and part B is light amber.
This non-drip compound is formulated for a variety of bonding, sealing and coating applications in the optical, opto-electronic, electrical, aerospace and specialty OEM industries.EP21NDCL offers convenient handling with a one to one mix ratio by weight or volume. This ratio can be adjusted to deliver different properties. For example, a two to one mix ratio cures more rigid, while a one to two mix ratio produces a flexible system. EP21NDCL cures at room temperatures or more quickly at elevated temperatures.Upon curing, this epoxy features durable bonds with high tensile lap shear, tensile and compressive strength of 2,600-2,800 psi, 6,500-7,500 psi and 12,000-13,000 psi, respectively. It bonds well to many substrates, such as metals, composites, glass, ceramics, rubbers and plastics, particularly acrylics and polycarbonates.With a volume resistivity greater than 1014 ohm-cm, EP21NDCL offers electrical insulation properties. It resists chemicals including water, oils, fuels, acids, bases and salts. This epoxy system also withstands rigorous thermal cycling over the wide service temperature range of -60°F to +250°F.EP21NDCL has a shelf life of a year at 75°F in its original, unopened containers. It is available for use in container kits ranging in size from ½ pints to 5 gallons.More information: www.masterbond.com