OEM

Long-Lasting Epoxy System Resists Fuels, Acids & Other Aggressive Chemicals

Developed for coating and lining storage tanks, piping, scrubbers, and processing equipment in the chemical industry, Master Bond EP21ARHT features outstanding chemical, fuel, and acid resistance. Also widely used in electronic, electrical, and metalworking industries, it can even successfully withstand immersion to 96-98% sulfuric acid and 20% hydrochloric acid for more than a year.

This two component epoxy cures at room temperature with minimal shrinkage, or more rapidly at elevated temperatures. Once fully cured, it produces a bond strength greater than 2,200 psi. EP21ARHT can be thermally cycled over the wide temperature range of -60ºF to +400ºF. This system features superior electrical insulation capabilities with a dielectric strength of 440 volts/mil and a low coefficient of thermal expansion of 40-45x10-6 in/in/ºC. EP21ARHT bonds well to metals, ceramics, glass and many plastics.

This epoxy offers a convenient non-critical 2 to 1 mix ratio by weight. It is color coded, with part A being clear and part B amber. Master Bond Polymer System EP21ARHT is available for purchase in pint, quart, gallon, and 5 gallon container kits.

New Epoxy System Has Exceptionally High Thermal Conductivity

Master Bond Inc., Hackensack, N.J. has developed a new two part adhesive system called EP21AN with a thermal conductivity in excess of 22 (BTU•in/ft²•hr•°F). It is an outstanding electrical insulator with a dielectric strength of >400 volts/mil and a volume resistivity greater than 1013 ohm-cm. This easy to use adhesive has been formulated with a non-critical 1/1 mix ratio by weight or volume. It cures readily at ambient temperatures or more quickly at elevated temperatures.

Master Bond EP21AN features excellent adhesion to a wide range of substrates including metals, ceramics, glass and many plastics. Bonds exhibit outstanding dimensional stability and shrinkage upon cure is exceptionally low. Master Bond EP21AN is available in 1/2 pint, pint, quart, gallon and 5 gallon kits.

Epoxy Impregnant Seals Metals & Nonmetals

Enhancing productivity and simplifying processing are primary concerns of industrial manufacturing companies in our extremely competitive business climate. In order to facilitate the achievements of these crucial goals Master Bond has extended much effort in research and development, and we are proud to announce the formulation of a new adhesive/sealant, impregnant and liner called EP19HT. We feel that this compound’s outstanding performance profile and easy handling represents significant improvements over conventional systems presently in use.

Master Bond EP19HT is a storage-stable, one component, low viscosity system that cures readily at elevated temperatures to a tough, strong and chemically resistant thermoset plastic. Its viscosity is 500-600 cps at 75°F. Recommended cure is 1 hour at 250°F. Shorter cures can be achieved at temperatures between 325-350°F. EP19HT is a 100% reactive system, containing no solvents or diluents. It has a service operating temperature range of -60°F to +400°F. Shrinkage upon cure is minimal.

Master Bond EP19HT has excellent electrical insulation properties. It has a volume resistivity of greater than 1015 ohm·cm. It has a tensile strength greater than 10,000 psi and a heat deflection temperature of more than 280°F. It has a clear amber color. Resistance to water, inorganic acids, bases, salts and many organic solvents is outstanding. Particularly noteworthy applications include sealing porosity in graphite, use as an adhesive/sealant for electronic/electrical applications, and service as a chemically resistant liner.

New One Component Adhesive/Sealant Resists Up To 600°F

Master Bond Inc., Hackensack, N.J. has developed a new toughened one component heat curing epoxy adhesive/sealant, called EP17. This compound has a service operating range of from -300°F to as high as 600°F. It is formulated to cure at temperatures from 300°F to 350°F for 60-90 minutes. EP17 bonds well to a variety of substrates including metals, glass, ceramics, vulcanized rubbers and many plastics. It has excellent resistance to a wide range of chemicals including fuels, acids, bases, oils and many solvents.

Master Bond EP17 possesses high physical strength properties and is readily machinable. It has superior dimensional stability and very low shrinkage upon cure. Tensile strength is 8,700 psi and tensile modulus is 387,000 psi. EP17 has a Shore D hardness of >90 and a compressive strength of >13,000 psi.

Master Bond EP17 is easy to use. It does not require any mixing prior to use and has an "unlimited" working life at room temperature. It is 100% reactive and does not contain any solvents or diluents. The standard color is gray. Its electrical insulation properties are superior. EP17 is a flowable paste and can also be formulated for application on vertical surfaces without sagging or dripping (EP17ND).

EP17 is available for use in pint, quart, gallon and 5 gallon containers.

One Part Epoxy Adhesive Resists High Temperatures

Master Bond Inc., Hackensack, N.J. has introduced a new single component, high performance epoxy adhesive called EP13. This compound requires no mixing and has an unlimited working life at room temperature. EP13 has excellent bond strength to similar and dissimilar substrates and superior dimensional stability. It has a service operating temperature range of -60°F to 450°F.

Master Bond EP13 is 100% reactive and does not contain any solvents or diluents. It can be applied to vertical surfaces without sagging or dripping. It cures at temperatures of 300°F to 350°F for 60-90 minutes. The higher the temperature the faster the cure speed.

EP13 possesses high compressive strength and is readily machinable. Upon cure, EP13 readily obtains tensile shear strengths in excess of 3,500 psi. Resistance to a wide range of chemicals including fuels, acids, bases, oils and many solvents is exceptional. EP13 has low shrinkage upon cure and good electrical insulation properties. The standard color is grey.

Master Bond EP13 is available in pint, quart, gallon and 5 gallon containers.

Can Epoxies Cure Underwater or in High Humidity Environments?

Rapid advances in epoxy technology have led to the development of a range of specially formulated systems for use in high humidity and underwater applications. Unique moisture insensitive hardeners and curing agents have overcome the inability of conventional epoxies to cure in such environments. These compounds offer easy application, long shelf life, excellent adhesion and durability.

Bonding Substrates with Different Thermal Expansion Coefficients

One of the most difficult of all adhesive applications is the bonding of substrates with different coefficients of thermal expansion (CTE). Common examples include bonding aluminum to glass, glass to plastics, ceramic to plastics and rubbers to metals. Additionally, stresses caused by temperature extremes in service and thermal cycling sometimes make a difficult situation more complicated.

Best Methods of Increasing Cure Speed

One of the most frequently asked questions raised by engineers, technicians and designers of polymer bonded assemblies, sealants and encapsulants is how to increase the curing speed of a specific polymer composition for a particular application.

Evaluating Cure Speeds of Condensation Curing Silicones

Condensation curing silicones can be broken down into two types: one part systems that are used, as is, and two part systems that require mixing. All condensation curing silicones require moisture to cure. One part systems get their moisture from the ambient environment. Two part systems typically contain enough moisture within them to cure once combined with a catalyst.

Bonding Dissimilar Substrates

Bonding Dissimilar Substrates

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