The task of decorating a bathroom comes with its own set of unique difficulties. Due to the high levels of moisture, fluctuating temperatures, and increased risk of mould, it is crucial to protect this space. Silicone sealant is one effective method to achieve this. It is commonly used around bathtubs and sinks and you may have even attempted to apply a fresh layer yourself. However, one of the most frequently asked questions is how to properly remove old silicone sealant before replacing it with new. To address this, we have created a step-by-step guide to help you through the process.
Why we use Silicone Sealant on Bathtubs
When installing bathroom sanitaryware, the sealant is used for various purposes. It not only revitalises the appearance of your bathroom, providing a clean and rejuvenated appearance, but it also serves as an effective measure to prevent leaks. Despite being designed to fit closely to the wall, fixed bathtubs often have small gaps that do not match your specific requirements. As a result, water can easily accumulate in these areas, especially when bathing young children or animals. A proper seal is necessary to prevent this space between the bath and the wall from becoming a breeding ground for mould and damage caused by moisture. Also, a lack of sealant can increase the likelihood of leaks that can lead to structural damage in the ceiling of the lower floor.
How Long Does Silicone Sealant Last?
The duration of the durability of the bathroom sealant typically ranges around 5 years, but various factors can affect this timeframe, such as the type of sealant used.
- The effectiveness of the initial application.
- The state of the surface before application.
- Changing levels of humidity in the bathroom.
- Any pre-existing mould or moisture-related growth.
- The frequency and type of cleaning chemicals used.
Do I Need Sealant?
It is highly advised to seal the exterior edges of your bathtub unless you have a standalone design. Neglecting to do so can result in various problems, which is not worth the risk, especially since using a sealant is a straightforward process. If you have any concerns about applying sealant or need guidance for a particular situation, our team of experts at Sealant & Tools is available to assist you.
Causes for Replacing Sealant
The need to replace the sealant around the bathtub becomes apparent through several signs, such as:
- The wall is showing signs of cracking.
- Certain parts of the wall are starting to separate.
- Some sections are beginning to change colour and look unpleasant.
- There may be the presence of mould or water damage.
It is possible that the sealant used in the bathroom was not appropriate if you observe signs of wear within a short time frame of 6-12 months. This could be because silicone sealant is specifically designed to withstand the constant changes in humidity and movement in the bathroom, making it highly resistant to water and flexible.
Removing Old Sealant
It is now time to replace the sealant around your bathtub and you want to do it quickly and effortlessly. It may seem like a good idea to just apply a new sealant over the old one, thinking it will provide double the protection.
Undoubtedly, attempting to apply a fresh sealant on top of an existing one is an ineffective task. This will only result in an unpolished and messy appearance, without achieving the desired sealing effect. The previous sealant is likely to have deteriorated, detached, or separated, creating uneven surfaces that will hinder the smooth application of the new sealant. As a result, water can seep through, compromising the sealants’ effectiveness.
Steps to Remove Silicone Sealant
When it comes to removing and applying silicone sealant, this is a simple and easy process, but it is important to be cautious. To ensure that all of the sealant is removed from around the bathtub, you will need to use a sharp blade or scraper. However, this can increase the risk of damaging the bathtub with scratches or dents. To prevent this, it is best to take extra care. We suggest using a specialised tool for removing silicone sealant and a gel remover for optimal results.
To remove the sealant surrounding your bathtub:
- Before application, ensure that the surface is free of any debris, moisture, and dust.
- Use a sharp blade or a specialised removal tool to carefully eliminate as much of the sealant as possible.
- Coat the bathtub with a generous amount of silicone sealant remover gel, making sure it is twice the thickness of the silicone being removed. Leave it to set for 2-4 hours for optimal results.
- After the recommended time, clean the surface and rinse it thoroughly to eliminate any remaining silicone.
- If needed, the same process can be repeated with a fresh application of silicone sealant remover gel.
Applying new sealant around your bathtub:
- Ensure that the surface is free of dirt, moisture, and dust.
- Use tape to create clean and straight edges.
- Start from the far corner of the bathtub.
- Open the silicone cartridge and cut the applicator tip at a 45-degree angle.
- Load the cartridge into the caulking gun.
- Hold the gun close to the bathtub and apply the sealant by consistently pressing the trigger.
- Move in a steady and uniform manner for optimal application.
- Dampen your finger and run it along the silicone bead to smoothen it out.
- Allow 24 hours for the sealant to dry before using the bathtub for best results.
It is important to carefully review the instructions for sealant removal gels. While some may be effective only on silicone sealants, others may also have the ability to soften acrylic, mastic, and butyl sealants, making their removal easier.
At FixTrade you can stick, seal and repair wood, metal, tile and stone with our wide range of grab adhesives and sealants. We stock various sealants, building silicones, adhesives, wood adhesives, expanding foam and caulks from trusted brands such as EverBuild and Bond-It.
We are available 24/7 – contact us via email or DM us @FixTrade_co_uk.
