CLEAPSS DT - Supporting practical work in science, technology and art

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Thermoplastic materials (eg, polyethylene, polyproylene, ABS or, exceptionally, PVC) are joined using a jet of hot air to melt and fuse the plastics material. A filler rod of the same material may be used to reinforce the joint. The blower may be integral with or remote from the welding nozzle.
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