How To Caulk A Bathtub or Shower Surround

Step 1

Remove the old caulk using the caulk remover tool and a flat scraper blade to remove all traces around the surround. If the tile and surround look in good repair, vacuum and remove any dirt or dust. Clean the surface of any mildew or soap scum too.

Step 2

Spray a 10% bleach solution into the area of the caulk and allow to sit for at least a few minutes. Wipe up with a clean, dry cloth and allow to air dry overnight.

Step 3

To create a straight line of caulk, use painters tape on both sides of the seam.

Step 4

Cut the caulk tube at a 35-45 degree angle. If you just cut the tip flat at a 90 degree angle, you will have more wasted caulk and a round bead rather than an angle bead.

Step 5

Position the tip in the seam area and move in a straight line with the bead of caulk. Make sure there are no gaps or huge globs as you move along. Also make sure to fill the space pretty well so it doesn’t cave in.

Step 6

Smooth out the caulk with your index finger or a caulk smoothing tool. As you move along, keep even pressure. Generally, I go over once to get any excess caulk and then a second time to smooth out completely, moving from end to end in one sweep.

Step 7

Pull up the painter's tape. Make sure that you can see the edges of the tape, or you will have odd ridges when you pull the tape up.

Step 8

Allow to cure according to directions before exposing to water.