Why Does Silicone Fail Around Showers?
Silicone is one of the hardest-working materials in any bathroom.
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It forms a flexible seal around showers, baths and other wet areas, helping to prevent water from entering joints where tiles and other surfaces meet. While it is a high-performance sealing product, silicone is not designed to last forever.
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Like many products that are exposed to water every day, silicone gradually ages over time. Even when professionally installed and well maintained, it will eventually require replacement as part of the normal maintenance of a bathroom.
Why Is Silicone Used Instead of Grout?
Grout is strong and rigid, making it ideal for filling the joints between tiles.
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Silicone, however, is flexible. It is used where different surfaces meet because these areas naturally experience small amounts of movement.
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Common areas where silicone is installed include:
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Internal shower corners
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Where wall tiles meet the shower floor
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Around shower screens
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Along bath edges
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Around some bathroom fixtures and fittings
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Without a flexible joint, movement can cause grout to crack and allow water to enter.
Constant Water Exposure Takes Its Toll
A shower is one of the wettest environments in the home.
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Every day, silicone is exposed to water, steam, soap, shampoo, body products and regular cleaning. Over time, these conditions naturally affect its appearance and performance.
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Areas that remain damp for longer, have poor ventilation or are used frequently may show signs of ageing sooner than drier areas of the bathroom.
Bathrooms Naturally Move
Most people don't realise that bathrooms experience small amounts of movement.
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Changes in temperature, moisture, normal building movement and everyday use all place stress on the joints where silicone has been installed.
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Silicone is specifically designed to accommodate this movement, but after years of expanding, contracting and flexing, it can eventually lose its elasticity, separate from the surface or begin to crack.
Preparation Makes a Difference
One of the most common reasons silicone fails prematurely is poor preparation.
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For silicone to bond correctly, the existing silicone should be completely removed and the surface thoroughly cleaned and dried before new silicone is applied.
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Applying fresh silicone over old silicone rarely provides a lasting repair because silicone generally does not bond well to existing silicone.
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Proper preparation is just as important as the quality of the silicone itself.
Mould and Staining
Silicone can sometimes develop mould or become stained before it actually fails.
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This is particularly common in showers that remain damp, have limited ventilation or receive heavy daily use.
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While regular cleaning may help maintain its appearance, mould that has penetrated the silicone usually cannot be completely removed. In these situations, replacing the silicone is often the best solution.
Cleaning Products Can Affect Silicone
Using harsh chemicals or abrasive cleaning methods may shorten the life of silicone.
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Gentler cleaning products designed for bathrooms are generally a better choice and can help maintain both the silicone and surrounding grout.
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Even with appropriate care, however, silicone should still be regarded as a maintenance item rather than a permanent fixture.
Signs It May Be Time for Replacement
Silicone may need replacing if you notice:
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Peeling or lifting edges
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Cracks or splits
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Gaps between the silicone and adjoining surfaces
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Persistent mould or staining that cannot be removed
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Silicone becoming hard or brittle
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Water escaping outside the shower
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Addressing these issues early may help prevent more significant problems from developing.
Silicone Replacement Is Normal Bathroom Maintenance
Many homeowners are surprised to learn that replacing silicone from time to time is simply part of maintaining a bathroom.
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Its lifespan varies depending on factors such as ventilation, how often the shower is used, cleaning methods and normal wear over time.
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Needing to replace silicone does not necessarily mean it was installed incorrectly. More often, it simply means the product has reached the end of its natural service life.
Does Your Shower Silicone Need Replacing?
If the silicone around your shower is cracked, peeling, stained or no longer providing an effective seal, Omni Grout Solutions can professionally remove the existing silicone, prepare the surface correctly and install a new flexible seal.
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If you're unsure whether the silicone simply needs replacing or whether another issue may be contributing to the problem, we're happy to assess the area and recommend the most appropriate solution.
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And it doesn't have to stop at the silicone. Depending on the condition of your bathroom, we can also help with professional regrouting, epoxy grout installation, leaking shower repairs, minor tile repairs and tile and grout cleaning — helping restore tired tiled areas and make your bathroom look fresh again without the need for a full renovation.
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Restore. Don’t Renovate™
