Two component epoxy compound for high performance bonding, sealing and coating

Key Features

  • Room temperature curing system
  • User friendly processing
  • Non-flowing paste
  • Cures optically clear in thin sections
  • Exceptional physical and electrical properties
  • Withstands 1,000 hours 85°C/85% RH

Product Description

Master Bond EP21NDCL is a two component, room temperature curing epoxy system that has a non-drip consistency. What is really eye-catching about this product is that even though Part A is translucent and Part B is light amber, upon mixing it cures optically clear, especially in thin sections. EP21NDCL combines easy processing, outstanding physical strength properties along with excellent electrical insulation values. The processing is straightforward and relatively easy; the mix ratio is a non-critical 1 to 1 by weight or volume. In fact, it can be mixed 2 to 1 so that it cures more rigid or 1 to 2 to effect a more flexible cure.

EP21NDCL produces high strength, durable bonds which hold up well to thermal cycling and resist many chemicals including water, oils, fuels, acids, bases and salts. It bonds well to a variety of substrates including metals, composites, glass, ceramics and many types of rubbers and plastics (most notably acrylics and polycarbonates). It is serviceable over the wide temperature range of -60°F to +250°F. This exceptionally versatile system can be effectively utilized in optical, opto-electronic, electrical, aerospace and specialty OEM industries where an optically clear, non-drip epoxy is desirable.

Product Advantages

  • Easy to work with and use
  • Long open time; paste consistency
  • High bond strength to many different substrates
  • Superior physical strength profile
  • High quality optical clarity especially in thin sections

Industrial Certifications

1,000 Hours at 85°C/85% RH




EP21NDCL is available is various sizes and units to accommodate customer's needs.

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