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Plumbing

How to Replace Silicone Seal Around a Bath

Quick Answer

Remove old silicone with a scraper or silicone remover, clean the surface with rubbing alcohol, apply a new bead of silicone, and smooth it with a tool.

How to troubleshoot How to Replace Silicone Seal Around a Bath

Mouldy or cracked silicone seal can cause leaks and mould growth. This guide covers removing old silicone, cleaning the area, and applying a new bead.

Step-by-Step Fix

  1. Remove all old silicone using a scraper or silicone remover solution.
  2. Clean the area thoroughly with rubbing alcohol to remove oils and residue.
  3. Dry the surface completely with a hairdryer if needed.
  4. Cut the nozzle of the silicone tube at a 45-degree angle to the size of the gap.
  5. Apply a continuous, even bead of silicone along the joint.
  6. Use a silicone smoothing tool or a wet finger to smooth the bead into the joint.
  7. Allow the silicone to cure for 24 hours before exposing it to water.

Common Error Codes

CodeMeaningResolution
Silicone doesn't stickSurface was wet or oilyRemove silicone, re-clean with alcohol, and ensure surface is dry.
Bumpy beadInconsistent pressure or toolPractice applying and smoothing; use a tool for evenness.

Frequently Asked Questions

Can I apply new silicone over old?

No, the new silicone will not adhere properly; always remove old silicone first.

How long should silicone sealant last?

Generally 5 to 10 years, depending on the quality and exposure.