How to Remove Mold From Silicone Caulking?

Mold is a very harmful thing for silicone caulk. It can damage your shower caulking and many useful things. On the other hand, it is injurious to health as well. You have to remove the mold to avoid the mentioned issues. Now, the question can arise, how to remove mold from silicone caulking?

Well, by reading this article, you will get to know the step-by-step process of cleaning mold from caulking. Moreover, you will be able to take the necessary steps to prevent mold growth. 

Let’s read this article to learn the removal process of mold. 

Remove Mold From Silicone Caulking

How to Remove Mold From Silicone Caulking?

You can remove mold with various cleaning objects. The majority of people recommend bleach to run this process. Though it is the oldest way, it works well. Instead of bleach, you can use hydrogen peroxide, vinegar, or baking soda. However, let’s jump to the ultimate process. 

Required Pieces of Equipment

To run the removal process smoothly, you need to get some crucial pieces of equipment. They are:

Bleach or other cleaning objects. 

Scrub brush


Warm water 

Spray bottle

Safety equipment such as gloves, masks, etc. 

Wash With Warm Water

At the very beginning of the process, you have to wash the caulking with warm water. So, arrange a bucket of warm water. Now, rinse the water around the caulking.  

Use Soap Water

Mix soap with water and then use it to wash the silicone caulking. Sprinkle the soap water and then scrub with a soft cloth or brush. This step is very crucial because bleach will work well if your surface is free from dust. So try to do it very carefully for better results. 

Mix the Bleach With Water

Now, you need to make a perfect blend of bleach with water. Put a specific amount of bleach in a bucket of water. Now, mix the bleach with water superbly. Never use plenty of bleach. It may harm your caulking. 

Spray Bleach

Fill the spray bottle with bleach. Now, spray the caulking. After spraying perfectly, wait for 15 to 20 minutes. This time, the bleach will remove the mold. Never forget to wear your protective equipment while working with bleach. 

Scrub Smoothly

Now, you have to scrub the area gently. Use a sponge to scrub it. Instead of a sponge, you can use a scrub brush in this step. Scrub smoothly so that the caulking can’t be damaged. 

Use Cotton Coils

If you wish to get more attractive and light caulking, then use a cotton coil in this step. Drown the coils into the bleach water and then place them on the silicone caulking. Now leave them overnight. 

Clean Again

Before starting to clean again, detach the cotton coils from the surface. Now, clean the whole surface with water. Remove the bleach residue completely. Soapy water can also be used again. 

Dry the Caulking

Never forget to dry the caulking. Dry it with a towel or a piece of cloth. If you leave the surface without making it dry, you may not get benefitted from the process. So never forget to do it. 

Use Baking Soda

Let’s know the method of baking soda in the removing process of mold from caulking. It is a natural way of cleaning. At the same time, it is a very useful object. And it will not harm your caulking surface. 

  • In the above-mentioned process, use baking soda instead of bleach. 
  • Make a perfect blend of soda and water and put it into the spray bottle. Now spray it onto the caulking. Leave the area for a few minutes. 
  • Scrub the silicone caulking gently.
  • Again leave it for 15 to 20 minutes.
  • After that, wash the surface perfectly. 

Use Vinegar

Vinegar is another crucial object in the cleaning process. You can use it without any hesitation. Most importantly, it is safe. I will not harm your silicone caulk. 

  • Put the vinegar into a spray bottle.
  • You can use it without making a blend with water.
  • Now, spray it onto the caulking. Leave the caulking for a moment. 
  • Look at the condition of mold whether it is removed or not.
  • Repeat the process if you need. 

Use Ammonia 

Ammonia is a chemical used to remove the mold effectively. You just need to mix a particular amount of ammonia with water in a bucket. After that put the solution in a spray bottle. 

Now, spray onto the silicone caulking. Try to spray very carefully so that the infected area can be covered. After spraying, let sit the ammonia onto the caulking for 10 to 15 minutes. 

It is high time to scrub the caulking. Scrub with a brush or sponge. Now, dry it with a piece of cloth. 

Some Additional Ways

There are some additional ways of removing mold from silicone caulk. Hydrogen peroxide is a very well working way. It will remove the mold very effectively. Another crucial way is using borax. It is also effective in the mold removing process. 

However, whatever the way is, you just need to remove the mold distinctly. 

Prevent Mold Growth

Prevent Mold Growth

You have to take some necessary steps so that the mold can’t grow further. The steps are very easy. 

Firstly, make proper ventilation in your house. If you have a proper ventilation system, the mold will not grow larger. So try to get a good air circulation system. A vented bathroom fan can also be a good solution in this case. 

Secondly, try to keep the place clean and dry. Mold will not grow in a clean and dry place. 

However, you may need to replace the silicone caulking if the molds still grow. 

Safety measurement 

During the whole process, you have to work with chemicals. So never forget to wear your protective pieces of equipment such as hand gloves, face masks, goggles, etc.

This step will help you to prevent any kind of unexpected situation. 


Mold is a common stain. So, never be worried about it. You just need to follow the above-mentioned process and remove mold from caulking. 

However, I hope you have got everything on how to remove mold from silicone caulkingNow, select one of the best ways for you and remove the mold from silicone caulking. Try to do it regularly.

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