How to Remove & replace moldy shower caulk

Over time, mold and mildew build up on bathroom caulk, which can be a pain to remove. It’s not only a health hazard, it’s irritating.

There are different steps you can take to remove the mold. You can use the steps below to remove it overnight or you can start fresh and actually remove the old caulking and apply new.

Remove the mold but leave the caulking:

Often, you may notice that mold collects at the edge of the tub, like this:

It may because the caulking isn’t the right kind or water is left there for too long. Either way, you can remove the mold with these steps:

You will need:

• Paper Towels (or cotton coil – shown below, if you have it)
• Bleach
• 1 pair of Disposable Gloves

Steps:

1. Get a disposable aluminum pan or use something to pour the bleach in *avoid using plastics*. The goal here is to pour in the bleach so you can dip the paper towels in it.
2. Tear apart the paper towels and roll each one into what can only be described as a fruit roll-up (or cotton coil, shown on the right). This is so they sit on the mold easily. If you have cotton coil fine, I think paper towels work just as good.
3. Dip the paper towels in the bleach and lay them directly on the mold, pushing them into the crevices.
4. Let the paper towels sit on the mold overnight.

Done! You now have a clean, sparkly tub.

If the caulking is too far gone and it needs to be replaced, removing and replacing moldy shower caulk is relatively simple. Keep in mind, though, that different types of caulk may be more or less appropriate for your project depending on your preferences for ease of application and removal, the substrate and the mold levels.

Start fresh! Remove the moldy shower caulk:

There are different types of caulking, so let’s take a look.

Acrylic caulk is the best caulk for repelling mold and dirt. Acrylic caulk can be either water-based or siliconized, which allows you to choose the best application, substrate and durability preferences. All acrylic caulks have good adhesion, flexibility and lifespan, and are designed to not only repel mold but also to remain bright white over time. All-acrylic water-based caulks are especially versatile since they can be painted with many different types of paint. Keep in mind that acrylic caulks tends to be more expensive than other types of caulks.




Generally speaking, silicone-based caulks are the best caulks to use in mold-friendly environments like bathrooms. Since silicone is inorganic, it is extremely mold, mildew and water resistant. Additionally, silicone-based caulk is idea for substrates commonly found in bathrooms such as ceramic tile, porcelain and glass.

Source: moderndaymoms.com