EP21TDCHT-1

Toughened two component epoxy for bonding and sealing features high peel strength
Key Features
  • Convenient processing, 1:1 mix ratio
  • Superb strength profile
  • Withstands aggressive thermal cycling
  • Ideal for bonding dissimilar substrates
Typical Properties
Viscosity
Part A: 60,000-110,000 cps, Part B: 50,000-90,000 cps
Cure Schedule
overnight at ambient temperature followed by 60-90 minutes at 150-200°F
Hardness
60-70 Shore D
Service Temperature Range
-100°F to +400°F
Elongation
15-20%
T-peel Strength
20 pli
Tensile Lap Shear Strength
>2,400 psi
Tensile Modulus
200,000-250,000 psi
Volume Resistivity
>10¹⁴ ohm-cm
Bild
Applications
Certifications

Meets EU Directive 2015/863

Product Description

Master Bond EP21TDCHT-1 is a two component epoxy adhesive formulated to cure at room temperature or more rapidly at elevated temperatures. It has a convenient and forgiving one to one mix ratio by weight. Upon mixing, for a 100 gram mass, the open time is 30-60 minutes. It cures at room temperature in 24-48 hours, or at 150-200°F in 1-2 hours. The optimum cure schedule is overnight at ambient temperature followed by 60-90 minutes at 150-200°F. It contains no solvents or diluents and has low shrinkage upon curing.

The system will bond well to a wide variety of substrates including metals, plastics, rubbers, glass and ceramics. EP21TDCHT-1 is a flexibilized system particularly well suited for bonding dissimilar substrates, especially where the substrates have different coefficients of expansion. EP21TDCHT-1 is an excellent electrical insulator and will resist most chemicals, including water, oils and many organic solvents. The service temperature range is outstanding, from -100°F to +400°F. EP21TDCHT-1 offers high shear and peel strength. This allows it to be used in a number of demanding situations including temperature cycling, high vibration and mechanical shock. EP21TDCHT-1 can be used in a range of applications including but not limited to structural, electronic, aerospace, medical and OEM. A non-drip version called E21TDCHTND-1 is also available.

Product Advantages

  • Easy processing, non-critical 1:1 mix ratio
  • Bonds well to a wide variety of substrates
  • Toughened system, resists thermal cycling
  • Dependable electrical insulation
  • High peel strength and impact resistance
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How to order

Verify Your Product Selection

With thousands of custom formulations available, our expert engineers provide personalized consultation to ensure you select the ideal adhesive. We will follow up with a product and packaging recommendation for your specific application.

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Receive Your Material

Your adhesive will be made to order and shipped to you. Typical lead times are 10-14 business days, with rush options available for urgent orders.