Easy Ways to Remove Black Mould From Silicone Sealant

by | Bathrooms

Originally published: May 14, 2024
Last Updated: May 14, 2024

Reading time: 3.92 minutes

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You’re likely no stranger to the unsightly black stains that can mar the silicone sealant in your shower, a result of black mould growth that thrives in humid environments.

To remove it, mix baking soda and white vinegar to create a paste, apply it to the mouldy area, let it sit, and then scrub with a stiff-bristled brush. Rinse the area with cold water, and repeat if needed. Avoid harsh chemicals or abrasive materials that can damage the sealant. Want to keep your shower area mould-free for good? You’re just a step away from finding out how.

Why Does Black Mould Grow on Silicone Sealant?

mould thrives in moisture rich

Black mould grows on silicone sealant because you’ve inadvertently created an ideal breeding ground for it, often due to a combination of high humidity, poor ventilation, and lack of regular cleaning.

When you don’t maintain your bathroom properly, moisture can accumulate, creating a perfect environment for black mould to thrive. You mightn’t even notice it at first, but soon, those tiny spores will spread, leaving unsightly black stains on your silicone sealant.

To prevent mould from growing, it’s essential to keep your bathroom well-ventilated and dry.

Maintain good airflow by opening windows or using an extractor fan. Regularly cleaning your bathroom, especially around showers and bathtubs, will help remove excess moisture and prevent mould growth.

By doing so, you’ll create an environment that’s not conducive to black mould growth. This will make it easier to remove mould when it does appear and prevent it from coming back.

How to remove black mould from silicone sealant

To tackle the unsightly stains, you can try making a paste by mixing one cup of white vinegar with two to three teaspoons of baking soda, which will help break down the mould.

Apply the paste to the mouldy areas using a damp rag, making sure to cover the entire affected area. Let it sit for five minutes before scrubbing the area with a stiff-bristled brush. Rinse the area with cold water to remove the paste and loosened mould.

If the mould is particularly stubborn, you may need to repeat the process a few times. In severe cases, you might need to contemplate removing and reapplying the silicone sealant as a last resort.

Remember to avoid using harsh chemicals or abrasive materials that can damage the silicone sealant.

Instead, opt for gentle yet effective cleaning products like HG Mould Remover, following the instructions carefully and paying attention to safety advice.

HG Mould Spray

HG Mould Spray

Best Product for Removing Black Mould

  • Effectively eliminates mould and mildew
  • Suitable for a wide range of surfaces
  • Can be used indoors or outdoors
  • Easy to use with a targeted spray action
  • Quick and simple to apply
  • Has a bleaching effect to remove tough stains

How to Prevent Black Mould Growing on silicone

clean and dry silicone

By taking a few simple steps, you can keep your silicone sealant looking like new and prevent black mould from growing in the first place.

To prevent mould growth, facilitate good ventilation in your bathroom or kitchen. Wipe off soap scum and residue from the silicone regularly to prevent mould spores from settling. Using a mould-resistant silicone sealant can also help prevent discoloration.

After each shower, make certain to dry the shower area thoroughly to prevent damp conditions that encourage mould growth. Soap deposits on the silicone can also cause it to turn black, so frequent cleaning and drying of the shower area is vital.

Frequently Asked Questions

How Do You Get Black Mould off Silicone Sealant?

“To get rid of black mould on silicone sealant, you’ll need to act fast! Try using a mould remover like HG Mould Spray or a homemade paste of white vinegar and baking soda to gently remove the mould without damaging the sealant.”

How Do You Remove Dark Stains From Silicone?

You can remove dark stains from silicone by scrubbing heavy stains with a stiff-bristled brush or reapplying a white vinegar and baking soda paste, then rinsing with cold water and drying with a microfibre cloth.

Does Bleach Damage Silicone Sealant?

You’re wondering if bleach damages silicone sealant? Yes, you should avoid using bleach as it can break down the silicone, causing it to deteriorate and become brittle, which can lead to cracks and further damage. However it doesn’t normally cause a problem if it is rinsed off fairly quickly.

Conclusion

You’ve conquered the black mould and restored your silicone sealant to its former glory.

With these simple steps, you’ve not only removed the mould but also learned how to prevent its return.

Your bathroom is now a cleaner, healthier space, and you can breathe easy knowing you’ve eliminated a breeding ground for germs and bacteria.

Take pride in your handywork and enjoy your mould-free sealant!

Disclaimer

plumbinghub.info is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com, amazon.co.uk, amazon.ca or amazon.it.

About Nick Jolliffe

With over two decades of experience in the Plumbing and Heating industry, Nick has become a trusted expert in the field. He has developed an impressive product knowledge across all aspects of plumbing and heating, including renewables, making him the go-to person for advice and product recommendations for any plumbing application. Whether you're a tradesperson or a DIY consumer, you can trust Nick to provide you with the right solution for your plumbing needs.

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