How to use rtv silicone sealant for leaking PVC drain pipes

Written by steve sloane
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to use rtv silicone sealant for leaking PVC drain pipes
PVC pipe fractures can be fixed with RTV silicone sealant. (pvc image by Greg Pickens from Fotolia.com)

PVC drain pipes can fracture over time, or if a heavy weight is placed upon them. If the crack/damage is small, it can be fixed with RTV silicone sealant. This sealant (RTV stands for Room Temperature Vulcanizing) comes in a tube that fits in a standard caulking gun. The sealant does not need to be mixed, but starts to cure when it comes out of the tube and is exposed to moisture in the air. Consequently, it needs to be applied quickly, before it sets.

Skill level:
Easy

Other People Are Reading

Things you need

  • Damp rag
  • Towel
  • Putty knife

Show MoreHide

Instructions

  1. 1

    Locate the damaged area on the PVC sewer pipe. Do not use the sewer line while fixing the leak.

  2. 2

    Wipe around the leaking area of the pipe, making sure that all dirt is removed. Then dry the area with a towel.

  3. 3

    Place the sealant tube in the caulk gun, and cut off the end of the tube's plastic nozzle with a utility knife.

  4. 4

    Squirt an ample amount of sealant quickly over the crack, and smear it over the crack with a putty knife. Wait for the sealant to dry completely, before running waste through the sewer pipe.

Tips and warnings

  • Wipe off the sealant from the putty knife, before the sealant has time to dry.
  • For larger cracks, it is recommended that the cracked area be cut out from the sewer pipe, and that a new piece of sewer pipe be installed.

Don't Miss

Filter:
  • All types
  • Articles
  • Slideshows
  • Videos
Sort:
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the eHow.co.uk site, you consent to the use of cookies. For more information, please see our Cookie policy.