OEM

Master Bond EP21NDCL is a unique 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 impressive 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.

Widely used for applications in the aerospace, electronic and OEM industries, Master Bond EP121CL-LO is a high performance epoxy that passes ASTM E595 testing for NASA low outgassing specifications. This two component system has a low mixed viscosity of 1,000-3,000 cps with a mix ratio of 100:80 by weight. It features an exceptionally long open time of at least 2-3 days at room temperature in a 100 gram batch and requires oven curing.

EP121CL-LO adheres well to many substrates including metals, composites, glass, ceramics, rubbers and most plastics. It offers a high tensile strength, tensile modulus and compressive strength of over 12,000 psi, 450,000 psi and 15,000 psi, respectively. This epoxy resists a variety of chemicals such as water, oils, acids, bases, fuels and many solvents. It has impressive optical clarity with a refractive index of 1.56.

With a volume resistivity exceeding 3x10¹⁴ ohm-cm at ambient temperatures, this electrical insulator is used for potting, encapsulation, coating and sealing applications. When used as a coating, EP121CL-LO can be conveniently applied with a spatula, knife, trowel, brush, paint roller, etc. This product has a service temperature range of -80°F to +500°F. EP121CL-LO features a shelf life of a year in its original, unopened containers and is available in kits ranging from ½ pints to 5 gallons.

Formulated primarily for high performance structural bonding applications, Master Bond EP13SPND-2 is a one part, high temperature resistant epoxy for the aerospace and specialty OEM industries. As a single component system, this product is easy to handle and does not require mixing prior to use. It also has an unlimited working life at room temperature. EP13SPND-2 has a paste consistency for non-drip application and it will not flow when curing.

Featuring an impressive strength profile, EP13SPND-2 offers a tensile lap shear strength, compressive strength and tensile modulus of over 3,000 psi, 18,000 psi and 500,000-550,000 psi, respectively. This dimensionally stable epoxy bonds well to many substrates including metals, glass, ceramics, composites, rubbers and most plastics. Typical cured bond line thickness is 0.002-0.008 inches.

EP13SPND-2 is a competent electrical insulator and features a volume resistivity exceeding 10¹⁴ ohm-cm. It resists a variety of chemicals such as fuels, oils, acids, bases and many solvents. This system is serviceable over the wide temperature range of -60°F to +500°F and is available for use in pints, quarts, gallons and 5 gallon containers.

Master Bond EP21TPFL-1AO is an electrically insulative, two part epoxy polysulfide system with a thermal conductivity of 9-10 BTU•in/ft²•hr•°F [1.30-1.44 W/(m·K)]. As a polysulfide based system, it has very good chemical resistance, particularly to fuels, oils, hydraulic fluids and related compounds. This unusual blend of properties, enables EP21TPFL-1AO to be a candidate for a variety of bonding, sealing, coating and encapsulation applications in the electronic, aerospace, specialty OEM and related industries.

With an elongation of 150-200%, EP21TPFL-1AO offers a high degree of flexibility and it can withstand intense thermal cycling and mechanical shock. This low viscosity system also has a hardness of 70-90 Shore A. The mix ratio is a forgiving two to three by weight or volume. Color coding facilitates mixing. Part A is black and Part B is off-white. Working life is a conveniently long 90-120 minutes at 75°F.

EP21TPFL-1AO fully cures at ambient temperatures and should not be heated. It has very good adhesion to metals, ceramics, composites, glass, and many rubbers and plastics. This compound is serviceable over the wide temperature range of -60°F to +250°F and has a 6 month shelf life in original, unopened containers. EP21TPFL-1AO is available for use in ½ pint, pint, quart, gallon or 5 gallon container kits.