Two component, higher viscosity epoxy system for bonding and sealing

Key Features

  • Rapid, room temperature curing system
  • Excellent toughness
  • High peel and shear strength
  • One to one mix ratio
  • Thixotropic paste
  • Meets RoHS requirements

Note: EP21TDCF-3NV complies with RoHS3 Directive (EU) 2015/863. It is a new version of EP21TDCF-3, which has been discontinued.

Product Description

Master Bond EP21TDCF-3NV is a two component epoxy for high performance bonding and sealing. It is formulated to cure rapidly at room temperature or faster at elevated temperatures. It has a non-critical mix ratio of one to one by weight or volume. The faster cure allows for a shortened fixture time. Once cured, EP21TDCF-3NV has excellent toughness. This gives the system outstanding mechanical shock resistance along with superior thermal cycling capabilities—even when bonding dissimilar substrates. It has a good blend of physical properties including high shear and peel strengths. It bonds well to a wide variety of substrates, including metals, glass, ceramics and many rubbers and plastics. EP21TDCF-3NV has the ability to withstand an array of chemicals, including water, fuels and oils, over the service temperature range of -100°F to +250°F. It is 100% reactive without any solvents or diluents. The hardened adhesive is an excellent electrical insulator.

The color of Part A is gray and Part B is amber. EP21TDCF- 3NV is a versatile, exceptionally strong, user friendly system that is widely used in the OEM, aerospace, electronic, electrical and related industries.

Product Advantages

  • Convenient mixing: non-critical equal weight or volume ratio
  • Easy application, higher viscosity, thixotropic system
  • Rapid curing at room temperature; shorter fixturing time
  • Bonds well to a variety of substrates
  • Noteworthy resistance to vibration, shock and thermal cycling
  • Superior shear and peel strengths
  • Good chemical resistance to water, fuels and oils

Industrial Certifications

Meets EU Directive 2015/863



Double Barrel Cartridge


Gun Applicator


Premixed & Frozen Syringe

EP21TDCF-3NV is available is various sizes and units to accommodate customer's needs.

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