Design & Technology
Components, joints and 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.
The main types of adhesive are PVA (polyvinyl acetate), synthetic resin, epoxy resin, contact adhesive and acrylic cement.
|PVA (polyvinyl acetate)||General purpose woodwork glue. Some PVA adhesives are water resistant.|
|Synthetic resin||A strong water-resistant glue for woodwork. It needs to be mixed up immediately before use.|
|Epoxy resin||For joining metals and plastics. It is waterproof but must be mixed up immediately before use.|
|Contact adhesive||For joining polystyrene and fabrics. Also useful for fixing plastic laminates to a wooden base.|
|Acrylic cement||For 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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