The Shop > Composites & Plastics

Joining polypropylene

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ken572:
Hello picclock,

If you have a lathe, you can spinweld two pieces of polypro together with the
inner piece being .006" to .010" larger then the ID., of the outer piece. One piece in
the chuck and hold the other by hand while pushing it in with the tail stock screw.
Spin it slow, and just use hand to guide it, DON'T GRAB IT or it will peel some skin
off or give a nice friction burn. :thumbup:

Hot Air Welder with filtered, oil free, dried air, or substitute Nitrogen for the air and
you can get professional results. :thumbup:

Ken.

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