EP77M-1

Two component, silver conductive epoxy adhesive system
Key Features
  • Very low volume resistivity
  • Superior chemical resistance
  • Higher temperature resistance
  • Good physical strength properties
Typical Properties
Viscosity
Part A: >400,000 cps, Part B: 10-35 cps
Cure Schedule
overnight at 75°F followed by 1-2 hours at 150°F
Hardness
70-80 Shore D
Service Temperature Range
-60°F to +300°F
Thermal Conductivity
20-22 BTU•in/(ft²•hr•°F)[2.88-3.17 W/(m•K)]
Volume Resistivity
<10⁻³ ohm-cm
Bild
EP77M-1 Two Part Epoxy
Certifications

Meets EU Directive 2015/863

Product Description

Master Bond EP77M-1 is a two component, electrically conductive adhesive for high performance bonding, designed for higher temperature and chemical resistance. EP77M-1 has a mix ratio of 100 to 8 by weight and has a malleable paste consistency after mixing. It will fully cure in 2-3 days at ambient temperatures, or in 2-3 hours at 150-200°F. The optimum cure schedule is overnight at room temperature followed by 1-2 hours at 150°F.

EP77M-1 has a good physical strength profile. It bonds well to a wide variety of substrates including metals, composites, glass, ceramics, rubber and many plastics. Also, it has high dimensional stability and low shrinkage upon curing. Most importantly, it is a superb electrical and thermal conductor. EP77M-1 has better chemical resistance to water, oils, fuels, acids and bases, when compared to most other conductive epoxies. The service temperature range is -60°F to +300°F. Part A is silver colored and Part B is clear. EP77M-1 is used in the aerospace, electronic, electrical, semiconductor and microwave industries among others, where this product profile is desirable.

Product Advantages

  • Easy application: smooth malleable paste
  • Versatile cures: ambient or faster at elevated temperatures
  • Superb electrical conductivity
  • Very good heat transfer capabilities
  • Superior chemical resistance properties
  • Good temperature 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.

Get a Quote

Our customer service team will follow up with a detailed quote with packaging and shipping options.

Place Your Order

We'll work with your company to process the order efficiently.

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.