How to Caulk a 3 Piece Shower

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After a long and tiresome day at work, I find happiness and rejuvenation in the shower. I bid goodbye to all the filth gathered over the hours and begin with a fresh mind and body.

However, it is upsetting seeing mildew and mold amassed around the walls during this beautiful experience.

Caulking prevents unsightly growths, and it assists in avoiding leakages by shutting grout lines.

Therefore, I explain how to caulk a three-piece shower and show you the entire process.


  • Silicone-based caulk
  • Caulking gun
  • Remover of caulk
  • Knife for applying putty
  • Utility knife
  • Razor Scraper
  • Painter’s tape
  • Towels made of paper
  • Mineral spirits are a type of liquor that is made
  • a sponge or a cloth
  • Rags

Steps To Follow

1. Eliminate The Old Caulk

The first step in applying fresh caulk is to eradicate the old one.

Therefore, carefully inspect all the spots where you’ll be putting the new coat of caulk and begin removing the previous one.

It is recommended to finish this step with a caulk removal tool intended for the purpose.

A razor scraper will suffice if you do not have one or cannot find one near you.

When the shower parts are made of acrylic, be particularly cautious because they are prone to scratches.

The 3-piece showers are a little wetter than the other options. As a result, silicone-based caulks would be better for these showers.

2. Scrub Remaining Components

Now that you’ve scraped the majority of the old caulk from the shower surfaces, it’s time to get rid of the rest.

You’ll need to clean up any loose grouting accumulated on the walls, tubs, and shower floor. You can do so by using a mold-removal product.

Using a liquid caulk eraser can assist you in this operation by softening the old one and enabling it simpler to dislodge.

These solutions are designed to weaken the binding between old caulk and bathroom surfaces.

Using the razor scraper, spray a small amount of this remover on the remnants and wipe them off.

3. Wipe It Clean and Dry

Wipe the spot with a moist towel after scraping it entirely and making the change smooth.

Use a mop or a rag to gently wipe the surface with your home cleaner for optimal results.

If no cleaner is present, a bleach solution can be used instead.

Sprinkle some rubbing alcohol into the cracks to get rid of molds already there but aren’t apparent.

Natural spirits can be used to remove the dirt as the last touch.

Please wait for the whole surface to dry before moving on to the next step once correctly polished.

You may use a dryer to accelerate the drying process.

4. Tape Both Sides

Some professionals use painter’s tape on all sides of the connection to apply a fresh coating.

I encourage this because it will provide you with a clear image of how wide and deep the gaps are.

Furthermore, the freshly put caulk will have sharp spots in the hereafter.

Afterward, you can start wrapping the tape over the cracks on the other bathroom walls.

Finish the step by running it along the shower floor or tub’s joints.

5. Caulk With a Silicone Base

You’ll have to get your caulk gun ready for this job before you apply the caulk. Its nozzle top should be trimmed at a 20-degree 45-degree angle and depending on the gap width of the shower’s connectors.

By understanding the indication line on the tip, you will know where to trim.

Then press out a film of caulk while holding the caulk gun vertical to the opening.

Continue moving the pistol forward along the connection until you approach the limit.

It doesn’t have to be completely smooth, but the spaces must be filled with enough caulk.

6. Wait 24 hours After Polishing

It’s now only a matter of polishing the new layer and waiting. All you’ll need is your finger and some water to smooth out the caulk coating.

Water will be repelled more efficiently with such an inclined bead.

Then, begin peeling off the tapes by raising a corner and tugging it at a steep angle.

Begin with the tub, work your way up the walls, and complete at the corners of the walls.

Make sure to complete the step while the caulk is still wet. Please wait for it to dry thoroughly, which should take around 24 hours.

It may not look good right now to know how to caulk a three-piece shower following simple steps like to:

  • Eliminate The Old Caulk
  • Scrub Remaining Components
  • Wipe It Clean and Dry
  • Tape both sides
  • Caulk With a Silicone Base
  • Wait 24 hours After Polishing

After you see how much it improves the bathroom’s looks and how much it reduces bathroom maintenance challenges, you will love caulking.