How to remove silicone sealant

Removing silicone sealant can seem like a daunting task, but with the right techniques and a little patience, you can do it effectively.

Knowing the best way to remove silicone sealant can help you with updating your kitchen or refreshing your bathroom. In this guide, we'll walk you through the process step-by-step, offering practical tips and insights to make the job easier.

To remove silicone sealant effectively, you'll need a few basic tools and materials.

Bathroom with a bathtub and tiled walls showing worn and discolored silicone sealant that needs replacing to restore a clean waterproof seal.

What you will need

Utility or Stanley knife
Plastic scraper or putty knife
White vinegar or acetone (depending on substrate)
Damp cloths
Optional:
Safety gloves
Protective eyewear

Difficulty

Average time

20-45 mins

Cost

Print version!

Understanding silicone sealant

Before diving into the removal process, it's important to understand what silicone sealant is. Silicone sealant, also known as silicone caulk, is used to seal joints and gaps in various surfaces. It’s commonly used in bathrooms, kitchens, and other areas prone to moisture, acting as barrier in between joints around the home. Despite its durability and water-resistant properties, there are times when you need to remove it, whether it's due to wear and tear, mould growth, or aesthetic updates.

Tips for success

Before we explain how to clean off silicone from your bathroom or kitchen, keep these tips for success in mind:

Take your time: Rushing the process can lead to mistakes or damage to the surfaces. Be patient and methodical.
Use plastic tools: Metal tools can scratch or damage surfaces. Choose plastic scrapers where possible.
Create a test patch: If using a chemical remover, test it on a small, hidden area first to ensure it won't damage or discolour your surfaces.

Instructions

1. Prepare the area

Before you start, make sure the area is clean and dry. Remove any items that might get in the way.

Tip:

Wearing safety gloves and protective eyewear is a good idea to protect yourself from any sharp tools or chemicals.

2. Cut away the bulk of the sealant

The best way to remove old silicone is to start by cutting away the bulk of it. Using a utility knife, carefully cut along the edges of the silicone sealant, removing as much as possible. Be cautious to avoid scratching or damaging the surfaces around the sealant.

3. Scrape off the remaining sealant

Once you've removed most of the old sealant, use a plastic scraper or putty knife to gently scrape away any remaining bits. This step may require some patience, as silicone can be stubborn. Try to get the surface as clean as possible.

4. Apply a sealant remover

There are various chemical products available that help break down silicone sealant. Apply a silicone sealant remover according to the manufacturer's instructions. Usually, you'll need to let it sit for a few minutes to soften the sealant. This will make it easier to remove any leftover residue.

5. Wipe away the softened sealant

After the sealant remover has had time to work, use a damp cloth to wipe away the softened sealant. You may need to repeat this process a couple of times to completely remove any residue.

6. Clean the area

To ensure the surface is free of any leftover sealant and chemicals, clean the area with rubbing alcohol or vinegar. This step is crucial, especially if you plan to apply new sealant. A clean surface ensures better adhesion of the new sealant.

When to consider professional help

While cleaning off silicone is generally a DIY-friendly task, there are situations where professional help might be necessary. If you're dealing with very old or stubborn sealant, or if you're unsure about handling chemicals, it might be worth consulting with a professional to avoid potential damage or injury.

EVO-STIK Stops Mould Dead White is a mould resistant silicone for sealing joints in warm, humid environments prone to mould growth.

What you will need

Understanding silicone sealant

Tips for success

Instructions

1. Prepare the area

Tip:

2. Cut away the bulk of the sealant

3. Scrape off the remaining sealant

4. Apply a sealant remover

5. Wipe away the softened sealant

6. Clean the area

When to consider professional help

Final thoughts

Related products

All Purpose Silicone Sealant

Bathroom and Kitchen Sealant

1 Hour Shower Bathroom Sealant

White for Life Shower & Bathroom Sealant

Clear for Life Shower & Bathroom Sealant

Stops Mould Dead Clear Sealant

Stops Mould Dead White Sealant