One component, toughened epoxy adhesive, sealant and coating

Key Features

  • High peel and shear strengths
  • Cures at 175°F
  • No mix, single component system
  • Outstanding thermal cycling capabilities
  • Serviceable from -100°F to +350°F
  • Withstands 1,000 hours 85°C/85% RH

Product Description

Master Bond Supreme 3HT-80 is a one component, heat curing epoxy featuring excellent physical strength properties and toughness. It cures 45-50 minutes at 175-180°F and in 20-30 minutes at 250°F. Although optimal properties are obtained with the higher temperature cure, the lower curing temperature still provides reasonably good physical strength and electrical insulation values. No mixing is required prior to use and the working life is unlimited. Unlike premixed and frozen systems which require special low temperature storage, Supreme 3HT-80 can be conveniently stored in conventional refrigerators.

It bonds well to a variety of substrates including metals, composites, glass, ceramics, vulcanized rubbers and many plastics. Supreme 3HT-80 forms high strength bonds in both shear and peel modes. Its toughness confers nimble thermal cycling capabilities as well as lively resistance to vibration and shock. It is 100% reactive and does not contain any diluents or solvents.

Supreme 3HT-80 withstands many chemicals including water, oil and many types of fuels. It is serviceable over the wide temperature range of -100°F to +350°F. The standard color is off-white, but other colors are available. Supreme 3HT-80 is well suited to applications in the aerospace, electronic, electro-optic and specialty OEM industries, among others particularly when substrates that are more heat sensitive are being used, and the convenience of a no mix system is expedient and sensible. A non-drip version is also available called Supreme 3HT-80ND-2.

Product Advantages

  • One component system; no mixing needed
  • Unlimited working life at room temperature
  • Versatile curing schedules at elevated temperatures
  • High strength in the shear and peel modes
  • Fine electrical insulation properties
  • Requires refrigeration, no freezing necessary
  • Ideal for bonding many heat sensitive substrates

Industrial Certifications

1,000 Hours at 85°C/85% RH




Supreme 3HT-80 is available is various sizes and units to accommodate customer's needs.

Visual Media

Supreme 3HT-80 for bonding, sealing and coating

Need to meet the demands of a fast paced production assembly?
See why this design engineer decided to go with Master Bond Supreme 3HT-80, a one component system that cures at low temperatures, features high bond strength, and is chemically resistant.

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