Remove the old caulking. Use a putty knife or flathead screwdriver to scrape away the old caulking.
Remove any bits of old caulking (you may need a moist towel) and be sure the tub surface is dry.
Apply the new caulking by laying an unbroken bead around the seam of the tub.
Smooth the caulking with your finger or a damp paper towel. This forms a watertight barrier. Allow 24 hours for the caulking to dry.
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- Putty knife or flathead screwdriver
- Moist towel