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Epoxies – Single Part

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Epoxies – Single Part

Permabond single-part epoxy adhesives are suitable for bonding a wide variety of materials. They are available with a range of different viscosities and with and without metal filler. Permabond epoxies have been developed to offer a high standard of performance for demanding bonding applications.

Substrates

Permabond single-part epoxy adhesives will bond most engineering materials. They form excellent structural bonds to a wide variety of materials including metals, composites, wood and even some plastics. Permabond has developed low temperature curing single part epoxies for use on plastics which would otherwise melt or deform during the heat curing process.

Durability

These adhesives offer excellent performance at high temperatures and harsh environmental conditions, having superb resistance to strong chemicals.

Applications

Single-part epoxies are ideal for use in heavy wear-and-tear applications such as bonding tungsten carbide tools & machinery. They are ideal for replacing welding and brazing and can significantly reduce assembly production costs. For this reason their use is widespread in the heat exchanger bonding market for sealing heat exchanger tubes and end-plates. Their excellent impact and temperature resistance also make them popular for bonding electric motor magnets.

Material selection

By replacing welding or brazing, the designer can have greater freedom of choice of manufacturing materials and can bond dissimilar substrates together. This can help reduce component cost and weight and improve performance.

Process

Adhesive is available in cartridge form or in bulk to dispense via automated dispensing equipment. The adhesives cure rapidly when heated so it is necessary to use and oven to cure the adhesive (or other method such as an induction coil, infra-red or a hot air gun).

Joint design

The high shear and peel strength of the bonds, coupled with the increased stress distribution of adhesives, greatly expands joint design possibilities.

Some benefits of these epoxies include:

  • Rubber toughened for high-peel strength and impact resistance
  • No mixing required
  • Excellent environmental durability
  • Rapid cure increases production rates
  • Solvent free improves workplace safety
  • Cost savings over brazing and welding
  • Low odor improves workplace environment

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