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Design & Technology

Components, joints and adhesives

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Adhesives

Adhesives are used to join materials by glueing. Different types of adhesives are used for different materials - for example, if a product is going to be used outside, then a waterproof adhesive should be used.

Adhesive types

The main types of adhesive are PVA (polyvinyl acetate), synthetic resin, epoxy resin, contact adhesive and acrylic cement.

Uses of adhesives

AdhesiveUses
PVA (polyvinyl acetate)General purpose woodwork glue. Some PVA adhesives are water resistant.
Synthetic resinA strong water-resistant glue for woodwork. It needs to be mixed up immediately before use.
Epoxy resinFor joining metals and plastics. It is waterproof but must be mixed up immediately before use.
Contact adhesiveFor joining polystyrene and fabrics. Also useful for fixing plastic laminates to a wooden base.
Acrylic cementFor the joining of acrylic and some other types of plastics. The adhesive "melts" the surface of the plastic and fuses it together.

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