How to remove bathroom sealant

DIY enthusiasts have used the coronavirus lockdown to undertake a number of tasks around their homes. If the sealant in your bathroom is looking tired, there is a simple fix you can implement during lockdown. has compiled a guide explaining how you can remove bathroom sealant.

As bathrooms are used, bathroom sealant can become soiled and ineffective, so it is advisable to replace the sealant every so often.

However, removing sealant is harder than it may appear at first.

If you are not careful you may end up damaging your bathtub, shower or sink.

There are several ways in which you can remove bathroom sealant including using a knife, a sealant remover tool or removal gel.


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How to remove bathroom sealant using a knife

Using a knife can be dangerous so it is advisable to take care when choosing this option.

Most people tend to use a Stanley knife for this type of activity.

If you wish to use a knife you should proceed by:

  • Cutting along the length of the silicone to separate it from the wall.
  • Grabbing hold of the loose edge and peeling it away from the wall as best as you can.

If you are lucky, you should see the silicone come away in one long strip, however, there may be a few leftover pieces.

How to remove bathroom sealant using a sealant remover tool

Sealant remover tools are available to buy from most DIY stores and typically costs around £10.

These tools scrape off the old sealant from your bathroom without risking scratching or damaging your appliances.

These devices can also be used when applying a new sealant too.

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How to remove bathroom sealant using removal gel

Sealant removal gel is described as a cost-effective option typically available to purchase for less than £10 for a large cartridge of the gel.

If you wish to use the removal gel, you should:

  • Put the tube in a mastic gun and chop a bit off the end.
  • Next, you should squeeze the gel into the old sealant.
  • Then you should wait for the gel to do its work for at least two hours, although it is often better to wait at least 12 hours, especially if the sealant is very old and worn.

You can either use the sealant removal gel by applying the gel first and leaving it to break down the silicone making it easier to remove or you can scrape off the old sealant by hand first and then use the gel to remove the remaining stubborn parts.

How to remove the leftover sealant

For remaining bits of sealant, you can remove these by dabbing a little white spirit on an old cloth and rubbing it over the leftover parts until they dissolve.

The alcohol helps to make the silicone less sticky and therefore easier to wipe away.

You can then remove any leftover bits with pliers or tweezers, or you can scrape them away with a toothbrush.

Once all the sealant has been removed, you can use alcohol to clean the surface underneath.

Next, combine bleach and water to kill off any mould underneath.

You should be sure to clean the area thoroughly cleaned before applying a new sealant, including each tile if removing sealant from a tiled wall.

Grime can stop sealant from joining properly to the surface and because of this water can behind it and cause problems with mould.

Furthermore, be sure to wait until a surface has dried completely before applying a new sealant.

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