Versatile, toughened two component epoxy for bonding, sealing and coating

Key Features

  • Superb strength profile
  • Good dimensional stability
  • Dependable electrical insulator
  • Paste consistency, non-drip application feature
  • Withstands aggressive thermal cycling
  • Ideal for bonding similar and dissimilar substrates

Product Description

Master Bond EP21TDCHTND is a two component epoxy adhesive, sealant and coating featuring high performance, versatility and exceptional user friendliness. It has a very forgiving and convenient one to one mix ratio by weight or volume. It cures at ambient temperatures that can be accelerated by adding heat, with the optimum cure schedule being overnight at room temperature, followed by 1-2 hours at 150-200°F. This non-drip viscosity system bonds well and with minimum shrinkage to a wide variety of substrates including metals, composites, glass, ceramics and many plastics and rubbers. EP21TDCHTND combines good dimensional stability with toughness. The forgiving nature of EP21TDCHTND allows it to be used for bonding dissimilar substrates that might have different coefficients of thermal expansion, conferring upon it top notch resistance to rigorous thermal cycling as well as vibration and shock. Additionally, it is a superior electrical insulator and has good chemical resistance against water, fuels and oils. Its wide service temperature range is from -100°F to +350°F. Both Parts A and B are amber in color. It can be used in aerospace, electrical, electronic, medical, specialty OEM and a wide variety of other industries as well.

Product Advantages

  • Convenient mixing: non-critical equal weight or volume ratio
  • User friendly, easy to apply, smooth paste along with convenient curing schedules
  • Impressive adhesion to a wide variety of substrates
  • Superior toughness, can withstand harsh thermal cycling while retaining dimensional stability
  • Dependable electrical insulation values
  • Robust temperature resistance profile from -100°F to +350°F




EP21TDCHTND is available is various sizes and units to accommodate customer's needs.

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