Adhesives

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Adhesives are used for bonding a variety of materials. Adhesive products can be manufactured from a range of substances, with each having different properties. Many are used to bond specific materials.

Choosing the right one depends on multiple factors, such as the surface of application and the strength of hold required.

ConRo Electronics offers a wide choice of products from major manufacturers.

ConRo Electronics is an authorized distributor for Henkel Loctite.

Adhesive bonding

Adhesive is used to join two surfaces, producing a smooth bond. This technique usually involves glues or epoxies that bond by drying.

The adhesive is applied in liquid form. This allows it to fill gaps and soak into the pores of the surfaces. When it cures and becomes solid, it holds the two objects together. Curing occurs with heat, pressure and/or time.

Advantages of using adhesives

Traditional join­ing procedures have several drawbacks. With welding, heat alters the spe­cific properties of the materials. Mechanical techniques, such as riv­eting, distribute stress inefficiently. In addition, they can weaken the ma­terials.

Today there are adhesives strong enough to replace rivets and welding. Using them has many advantages:

  • Bonding almost any desired com­bination of materials
  • Allowing the material prop­erties of the substrates to be retained
  • Saving time and accelerating the production process
  • Removing unevenness on material surfaces
  • Allowing for greater stress tolerance by filling gaps
  • Preventing contact corrosion for metal bonds (the adhesive works as insulator)

Types of adhesives

There are many types for various applications. They may be classified in a variety of ways:

  • By chemical composition: epoxies, polyurethanes, polyimides
  • By physical form: paste, liquid, film, pellets
  • By structure: hot melt, reactive hot melt, pressure sensitive, contact, etc.
  • By load bearing capacity: structural, semi-structural, or non-structural

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