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Permanent joining methods - Coggle Diagram
Permanent joining methods
PVA (wood glue)
Joins timber to timber
Water-based adhesive, and works by soaking into the surface of the timber and setting when the water has been absorbed. It is supplied in liquid form, ready to use; it is easy to apply, non-staining, and produces a strong bond.
Epoxy resin
Thermoset
Araldite (brand)
Used to join metal to metal / metal to plastic
Expensive adhesive; used for special purposes. A resin and hardener are mixed together in equal amounts, and hardening begins immediately. The adhesive is fully cured after several hours. It makes an extremely strong and hard bond. Can be used between many materials
Contact glue
Used for joining sheet materials together
It works by applying it to both surfaces and allowing them to become touch dry. Adhesion takes place as soon as the two surfaces make contact and there is no opportunity for repositioning
Nails
Nailing is a quick way of making a permanent joint in wood. Weak joints of not combined with other adhesive. As a nail is hammered in, it punches the fibres away from it. The fibres then grip the shank of the nail, making it difficult to remove.
Nails cannot easily be removed without
damaging the timber.
Rivets
To make permanent joints in sheet metal and other materials. Designed to be joined from 1 side
