How to repair a PVC drain pipe with epoxy putty

Written by steve sloane
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How to repair a PVC drain pipe with epoxy putty
PVC pipe breaks can be fixed with epoxy putty. (pvc image by Greg Pickens from

PVC drain pipes (also known as sewer pipes) are very tough and durable. However, if they are accidentally trodden on or knocked with a heavy object, they can crack. The best way to fix a broken section of PVC pipe is to cut it out and replace it. It can also be fixed with the application of epoxy putty. This putty comes in a tube, and the required amount is applied to the surface of the pipe around the fracture/break.

Skill level:
Moderately Easy

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Things you need

  • Steel brush
  • Rag and solvent
  • Dry rag
  • Workman's knife

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  1. 1

    Clean around the broken area of PVC pipe using a wire brush. This will lightly scratch the pipe surface and help the putty stick in place. Also, clean the area with a rag and solvent to remove any grease. Wipe the area with a dry rag to remove any moisture.

  2. 2

    Cut from the tube the amount of putty needed to cover the damaged pipe area (Use a workman's knife.). Roll and knead the putty in your hands, until it becomes one colour (The putty is two colours while in the tube.).

  3. 3

    Apply the putty to the broken pipe area within two minutes of finishing kneading it. Cover not only the break, but also the pipe one inch in every direction of the break. The putty will take three hours to fully cure. During this time, it can be smoothed out with wet fingers.

Tips and warnings

  • Wash hands thoroughly with warm soapy water after applying the putty.
  • Do not use the PVC sewer pipe until the putty has fully cured.
  • Wear rubber gloves to knead/handle the putty if you skin becomes irritant.

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