If you are looking down at your bathtub and either disgusted by the coloring of the caulk or it is peeling off, you may want to replace it. More important than aesthetics is the possibility of mold growth in the wall. Removing the old caulk and recaulking the tub is a fairly easy DIY task that will only take you a few minutes to complete.
1. Apply the caulk softener around the entire perimeter to loosen old caulk.
2. Allow softener to soak into old caulk for about two hours.
3. Remove old caulk by using the putty knife to loosen caulk on tub and against tile. You should be able to peel most of it off once you get it going.
4. Clean with cleaner to remove any remnants of old caulk and any mildew or mold that may be present.
5. Take a damp towel to remove all cleanser residue and then use a fresh towel to dry off the area. Allow to the area to continue to air dry until surface is completely dry.
1. Fill the tub with water. This will ensure a tighter seal.
2. Use painters tape to cover area above and below the seam.
3. Load the gun with the tub of caulk and cut the tip (45 degree angle).
4. Begin caulking on the shortest wall. Apply the tip of the gun to the seam and apply steady pressure to the gun while keeping the tip moving across the seam (you should always be pulling the gun backwards, not pushing it forward).
5. When you reach the first corner, remove the gun from the seam and clean off the tip of the gun with a fresh paper towel.
6. Repeat the process around the remaining seams of the tub, stopping at the corner to avoid pooling of the caulk and to clean the tip.
7. When the entire seam has been covered, moisten your finger and run it along the entire seam. This will smooth out the caulk and remove excess caulk. You will have to clean and re moisten your finger several times during this process.
8. Follow directions on the caulk tube regarding drying time and remove tape very carefully so as not to ruin the new caulk.