This is a problem that recurs every 5-10 years, namely the appearance of mold on the seals of the shower, the bathtub, the bathroom sink. As this room is often damp, mold will easily emerge on areas most often covered with water, namely the joints. However, mold is dark in color and can be seen quickly on the bright white surface of the joints.
First, reduce the amount of mold.
You can already reduce the amount of mold by applying fungicides. You don't need to use complex chemicals, there are simple natural solutions, such as white vinegar. You can mix white vinegar with dish soap, ammonia or baking soda to increase its effectiveness.
Black soap is a good alternative. Just like lemon juice, the acidity of which can whiten dirty surfaces without any problem.
Bleach works great at removing mold, however it is not healthy. Health risks can be reduced by applying bleach to a cotton swab.
If the mold persists, more drastic means can be used. For example a steam cleaner, which will project very hot water in the form of micro drops and steam.
Cover the joints.
This is a good solution if your joints are still effective in preventing water from seeping through the tiles and therefore into the floor and wall. If the grout remains dirty despite your efforts to reduce the affected areas, you can apply a tile grout whitening pen. This pen will help us hide the traces. It works like a correction pen, you apply the product to the joints using a nozzle.
There is also a special paint for tile joints to hide all visible stains. It’s not a perfect solution but the final result is quite appreciable. It looks like the gaskets are like new.
Replace the seal.
This is the most advanced solution. If there is too much mold and the gasket has serious wear defects, then it's time to refresh your bathroom by changing the gaskets. You have to be able to ensure that the joints are perfectly watertight, so this is a crucial exercise to perform without being very complex. We will remove the damaged joints, we can use a cutter if necessary. Using acetone can help loosen stubborn parts. We clean the support, we check that we have removed all the ends of the joints, we rinse everything and wait for it to dry. The surface must be completely dry before applying the new sealant. We take a caulking gun for putty to apply the silicone, white sanitary putty, smooth with a lightly moistened finger. We let it dry for a few hours before being able to go in the shower again.
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