How to Caulk a Tub Surround
When that bright fresh caulking in your bathtub begins to look stained, cracked and worn, it's time to recaulk. Performing this typical maintenance task can help to minimize leaks and avoid the subsequent rotting of underlayment and wood framing. Caulking your bathtub is a fairly simple and inexpensive project, but it does take the investment of time. Does this Spark an idea?
Things You'll Need
- Razor (utility) knife
- Putty knife
- Bathtub cleaner
- Latex bathtub caulk
- Caulking gun (optional)
- Rags
Instructions
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1
Remove any old caulking that may be in place around the tub perimeter, soap dishes, and floor. Do this by carefully cutting the caulking out with a utility knife. If needed, use a putty knife to help scrape off the old caulking from the tub or surround. Clean the areas where caulk was removed with bathtub cleaner and let dry overnight.
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2
Fill the tub with water. Do this to expand the gaps to their widest point and minimize possible cracking in the future. Do not let the water splash on areas where caulk will be applied. If it does, dry the area thoroughly.
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3
Load the tube of caulk into a caulk gun (if you are using one). Cut off the end of the tube of caulking at a 45-degree angle with the utility knife. There may be an etched line or mark close to the tip that indicates where the cut should be made. The hole in the tip should be roughly ¼ inch, or the diameter of a coat hanger. Be careful to not cut off too much or you will not be able to easily control the flow of caulk.
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4
Place the tip of the caulk gun in a corner at the back wall. Rest the tip of the caulk gun or tube of caulk in the crack between the wall and tub. Keep even pressure on the tube of caulk or caulk gun trigger and slowly apply a bead (line) of caulk along the entire crack. Add extra caulk where needed where the gap is wider, but be careful not to overapply or it will get messy.
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5
Use a dampened finger to smooth the caulk by starting at the corner and sliding your finger across the caulk. Apply enough pressure to push the caulk into the crack but not so hard that the caulk is recessed into the gap. If needed, add more caulk. Wipe extra caulking off on a damp rag.
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6
Repeat the caulking process for the two side walls. Also apply caulk around any soap dishes, along the outside of the tub where it meets the floor, and around the perimeter where the tub meets the wall if desired.
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7
Let the water out of the bathtub. Check to see if any of the caulk needs to be touched up due to the change in weight. Allow at least 24 hours for the caulk to dry.
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Tips & Warnings
Be sure to purchase caulk approved for bathroom use. Look for mold- and mildew-resistant caulking. Open the windows for ventilation.
Use caution when using a razor knife. Keep children away from the tub when the water is in it.
