Remove Mold from Silicone Rubber with Simple Methods

There are many useful tools made from silicone rubber. This material can resist water in a great way, but if the rubber’s atmosphere is wet or if we do not maintain it well, mold will form quickly. As you know, mold can not be clean easily only with water or simple detergent. So, how can we remove mold from silicone rubber?

In this blog, we will answer this question for you. We are going to show you how to remove mold from your rubber and maintain its quality at the same time. Stay tuned to find out how!

How to Remove Mold from Silicone Rubber?

Silicone Cupcake Baking Cups

In this section, we will show you some of the best cleaning techniques for mold. But before you get started, we highly recommend you prepare goggles, gloves, or masks for your safety and health reasons. 

No matter what ingredients you are going to use for removing mold, you should always wear those gears. Do not attempt to get down to cleaning the mold right away because it can cause bad reactions such as irritation and itchiness to your eyes and skin. When you breathe it, your health would be badly affected, too. 

In case you clean the rubber indoor, make sure you open the windows and doors to let the airflow easily. The wind and natural air will help take the mold’s particles away.


Vinegar is the safest way to get rid of mold from silicone rubber. This technique should be your first consideration, especially when your rubber does not have too much mold or grease. 

However, if there is too much mold, you might need to check other stronger cleaners such as ammonia and bleach formula, which we would discuss later. Now, let’s see how we can use vinegar to clean silicone rubber. 

Step 1: Prepare

The first thing you need to prepare is vinegar. Even though you can use many useful vinegar for cleaning, we recommend distilled white vinegar because it is cheap and will not leave any color on your rubber. 

Besides, we also need a spraying bottle, gloves, and some soft brush that is safe for the rubber’s surface. Even though vinegar is not harmful to our skin, the mold is. So, we advise you to prepare goggles, gloves, or masks if possible. 

Step 2: Spray Vinegar on the Silicone Rubber

Pour a reasonable amount of vinegar in a spraying bottle, then spray it on the surface of the silicone rubber. If there is too much mold, you can use a soft brush or a cloth to wipe the mold first, then spray the vinegar later. 

Do not rinse the vinegar right away. Leave it there for around four hours or even more if there is too much mold in your rubber. 

Step 3: Clean with Water and Dry 

After a few hours, you can wash the silicone rubber again with water. Make sure you open your door and window because when you clean the mold off, the mold’s smell might cause bad effects on your health.

Bleach Formula

Step 1: Prepare

Bleach can be harmful to your skin, so you must wear gear while cleaning your silicone rubber. It would help if you also had a spraying bottle and water for the cleaning process. 

Step 2: Make the Cleaner

Mix around one cup of bleach with around four littler (or one gallon) of water. Stir them carefully until they all dissolve. 

Step 3: Clean

Spray the mixture on the surface of silicone rubber and start cleaning. Try your best to remove as much mold as possible, then leave the assortment there for around ten minutes. 

Step 4: Wash It Again with Water

After ten minutes, clean your rubber again with water, rinse it with a cloth or sponge, and dry naturally. 


Step 1: Prepare

You should keep in mind that ammonia might be dangerous if you do not use gears. You might only be affected by the mold with vinegar if you do not have gear, but with ammonia, your skin will be hurt. For cleaning, you will also need a spraying bottle and running water. 

Step 2: Make the Mixture

Mix water and ammonia with the ratio of 1:1, then carefully stir them. Then, pour the mixture into the spraying bottle. Again, it would help if you were careful while using this chemical. 

Step 3: Spray and Clean 

Spray the mixture on the surface of your rubber, and use a brush to clean off the mold at the same time. Keep on removing the mold until you cannot see any mold left. 

Do not clean the rubber right away; leave the ammonia mixture there for around ten minutes, and start rubbing it again. 

Step 4: Clean with Water

After your silicone rubber is clean, clean the whole thing with running water until all the chemicals are rinsed off. Make sure you have ventilation supports, such as a fan, opening windows or doors.

Caution: Potential Damage of Some Mold-Cleaning Methods

In the three methods we mentioned above, vinegar is the safest way to clean the mold because it will not affect your rubber’s quality a lot. However, vinegar’s disadvantage is that it cannot clean mold on a deeper level, and you have to wait for so long for this ingredient to kill mold. 

Bleach and ammonia work so much faster, but your silicone rubber’s quality might be reduced because these two cleaners are strong. 

How to Avoid Mold in the First Place?

Clean the Dirt Right Away

If you leave dirt, especially organic dirt or fluid, on your silicone rubber surface for a while, mold will form easily. So, whenever your rubber gets some dirt on it, ensure you clean it right away. 

In case your rubber already gets mold on, try the three techniques above to clean it as early as possible. The longer you leave the mold there, the deeper it gets into your rubber. 

Store Silicone Rubber in Dry Places

Humidity is ideal for mold to grow. Therefore, we suggest you store your silicone rubber only in dry places. 


It might not be possible to remove mold from silicone rubber only with water or regular detergent, but with the three ingredients we suggested in this blog, we believe you will see the difference. 

Remember to prevent your silicone rubber from getting mold in the first place, and you will not have to worry too much about mold.

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