Two component epoxy compound for bonding, sealing and encapsulation

Key Features

  • Convenient handling
  • High flexibility
  • Paste consistency
  • Thermally conductive and electrically insulative
  • NASA low outgassing approved
  • Withstands 1,000 hours 85°C/85% RH

Product Description

Master Bond EP37-3FLFAOND is a two component system for high performance bonding, sealing and encapsulation that is formulated to cure at room temperature or more rapidly at elevated temperatures. It has a convenient one to one mix ratio by weight or volume. It has an unusual blend of properties including high thermal conductivity, excellent electrical insulation properties, good physical strength and a high degree of flexibility. Once cured, the epoxy exhibits striking resistance to shock, vibration, impact and thermal cycling. It withstands many chemicals including water, oil and various solvents. It is a wonderful adhesive that forms strong, flexible bonds to a wide variety of substrates including metals, composites, ceramics and many rubbers and plastics. EP37-3FLFAOND is a paste and will stay in place when curing. It is cryogenically serviceable over the wide temperature range of 4K to +250°F. Parts A and B are off-white in color. Master Bond EP37-3FLFAOND is widely used in the electronic, electrical, computer, opto-electronic, aerospace and specialty OEM industries where electrical insulation and heat transfer are required. The uniqueness of EP37-3FLFAOND lies in the fact that this thermally conductive system retains a high level of flexibility while having the desirable physical characteristics inherent in epoxies.

Product Advantages

  • Convenient mixing: easy to use, non-critical one to one mix ratio by weight or volume
  • High bond strength to a wide variety of substrates
  • Resists rigorous thermal cycling, mechanical and thermal shocks
  • Good overall physical strength properties and chemical resistance
  • Cryogenically serviceable down to 4K

Industrial Certifications

ASTM E595 Compliant

1,000 Hours at 85°C/85% RH

Meets EU Directive 2015/863



Premixed & Frozen Syringe


EP37-3FLFAOND is available is various sizes and units to accommodate customer's needs.

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