How to glue a polyethylene pipe

Written by sal marco
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How to glue a polyethylene pipe
Joining polythene pipe (religious symbol image by askthegeek from

Polythene pipe, used for water supply lines, drainage pipe gas and sewer hookups, offers a durable flexible alternative to metal and hard plastic pipe. Polythene pipe does not fracture or break during freeze/thaw weather cycles due to its expanding nature. Polythene pipe resists corrosion and does not degrade during use making it an economically sound choice. Polythene, formed into fittings, valves and pipe, requires a special bonding agent to join pieces together tightly.

Skill level:

Things you need

  • Rag
  • Fine-grit sandpaper or steel wool
  • Polythene adhesive

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  1. 1

    Wipe the ends of the pipe and insides of valves or fittings to remove dirt, dust and debris.

  2. 2

    Sand the outer ends of the pipe and the insides of the valves or fittings with fine-grit sandpaper or fine-grade steel wool to rough up the smooth exterior/interior coating, which ensures a good bonding surface.

  3. 3

    Wipe away polythene sanding dust burrs on the ends of a cut pipe with a rag.

  4. 4

    Squeeze the tube or load a caulking gun with polythene adhesive to apply a bead around the pipe end. Use only adhesives designed specifically for polythene joining.

  5. 5

    Insert the end of the pipe into the coupler or fitting within 1- to 2-minutes. Allow the joint to dry for 5-minutes before using.

Tips and warnings

  • Consider using barbed fittings and clamps if adhesives are not available.
  • Use polythene adhesive in wet or dry conditions.

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