Bathroom Renovation

Removing old worn silicone


Nothing looks worse in a bathroom than old mouldy or discoloured silicone. Black spots of mould in the silicone sealant are unsightly and impossible to clean. The good news is that it’s so easy to remove old silicone and update with a new waterproof silicone sealant. Using the right sealant will help stop those mouldy black spots coming back.

It is important to completely remove old silicone. This is because an established mould colony (in the old sealant) can grow through your new sealant, even if your new sealant has mould inhibitors to prevent this from occurring.

Updating your Silicone sealant is easy – here’s how.

Easy as

  1. Cut away the worst of the sealant using a sharp blade.
  2. Ensure the surfaces are completely dry
  3. Apply Selleys Silicone Remover on the surface of the old silicone layering it about 3mm high.
  4. Allow 2-4 hours for thin beads of sealant it can be significantly longer if the silicone is not cut back first and may require multiple applications. It is important to make sure the remover does not dry out while you wait the couple of hours for it to soften the silicone.
  5. Once it is softened the silicone you can clean the silicone up with methylated spirits – do not use water.

Applying a new silicone sealant

Choose the right product for the job. Selleys gives you two choices. Selleys Wet Area Silicone Sealant which adheres to mortar, grout and metals. Selleys Wet Area Silicone does not lift at the edges and keeps out moisture, mould and dirt.

If you need the job done fast – then Selleys Wet Area Speed Seal can help. Wet Area Speed Seal is a fast curing silicone which sets in under 2 hours. Wet Area Speed Seal provides protection from mould and fungal growth that is Guaranteed for 5 years.