A common bathroom nuisance, mould on shower silicone sealant, can be eliminated without scrubbing using a simple natural ingredient: white vinegar. According to Terry Alexander, a handyman and founder of The Plumbero, white vinegar's acidic properties make it an effective mould remover that penetrates the porous silicone to kill spores at the root, unlike bleach which only treats the surface.
Why Mould Thrives on Silicone Sealant
Silicone sealant, the rubbery strip lining showers that prevents water seepage, is particularly prone to mould because it is porous. Mould spores embed themselves deep within the material, thriving in damp bathroom environments. Frequent cleaning is required to keep it at bay.
The Limitations of Bleach
Bleach is capable of eliminating mould on the surface, but it cannot reach spores buried deep within the silicone. This makes it far from ideal for shower seals, as it only provides a temporary fix.
How White Vinegar Works
White vinegar contains acetic acid, which breaks down mould spores without harsh chemicals. It is gentle on silicone sealant, causing no damage or discolouration, yet powerful enough to penetrate and eliminate all spores entirely.
Step-by-Step Cleaning Method
To clean shower mould with white vinegar, spray a generous amount directly onto the affected, mouldy brown areas of the silicone sealant. Allow the vinegar to sit for at least one hour to give it time to kill all spores. For best results, consider leaving it overnight, as natural methods often require longer to take effect than chemical alternatives.
Alexander advises ensuring adequate ventilation during the process, as white vinegar has a potent odour that can be overwhelming in a bathroom environment.
After the waiting period, use a bristled brush or an old toothbrush to remove the now-loosened mould; it should lift away effortlessly. Rinse the silicone seal with warm water and thoroughly dry it with a clean cloth to help keep it mould-free.
Long-Term Prevention
Consistently cleaning your shower with white vinegar will stop mould buildup. For a more powerful solution that ensures longer-lasting cleanliness, combine white vinegar with baking soda and tea tree oil.
