Joining plastics

Plastic products are often moulded so they just snap together. If you have to make permanent joint, a specialist adhesive [adhesive: a substance which bonds the surfaces of materials together ] is often the best choice.

Plastic adhesives

• Plastic weld is a multi-purpose plastic adhesive that joins most types of plastics (do not use it in on foamed plastics).
• Tensol 12 is good for acrylic. It is quick and easy to use. But if spilt it marks the work. It is not very strong.
• Tensol 70 is much stronger. It is acrylic based. It comes in two parts. It is not easy to use, as it takes 1.5 hours to harden and contracts.

Rivets, nuts, bolts and machine screws can also be used for joining plastics.

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