Last edited 05 Nov 2016

Adhesives

Adhesives are a bonding agent used to join materials together by glueing. Adhesives can be used in construction in many situations:

The most common types of adhesive are as follows:

  • PVA (polyvinyl acetate): A general purpose woodwork glue, with some water resistant properties.
  • Synthetic resin: A strong water-resistant woodwork glue.
  • Epoxy resin: Used for metals and plastics.
  • Acrylic cement: Used for acrylic and some types of plastic. The adhesive ‘melts’ the surface of the plastic and fuses it together.
  • Casein: Made from sour milk. A cold setting adhesive in the form of a powder which is mixed with water.
  • Urea formaldehyde: A cold setting resin glue. Although moisture resistant, it is usually restricted to timber members used in dry, unexposed conditions as it loses strength after prolonged exposure to water or heat.
  • Resorcinol formaldehyde: A cold setting glue that is suitable for timber members used in external situations. Will set at temperatures down to 15°C and does not lose strength at high temperatures.
  • Phenol formaldehyde: A warm setting adhesive that requires a temperature of above around 86°C to set.

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[edit] External references

  • ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., GREENO, R., Butterworth-Heinemann (2007)