08/29/2026
A clean caulk line helps keep moisture from finding its way behind your tub or shower.
Reapplying caulk is a manageable home maintenance project, but preparation and timing make a difference.
1. Begin with a completely dry surface. Any moisture left in the joint can affect the seal.
2. Caulk the vertical seams first, then work toward the outside. Apply the fresh caulk directly into the joint, keeping the bead no wider than ¼ inch. If you’re using a caulk gun, cut only enough from the tube’s tip to create the bead size you need.
3. Moisten your finger with a damp sponge, then glide it along the joint to press and smooth the caulk. Wipe away excess promptly. If the line becomes too uneven, remove the wet caulk and try again.
4. Check each finished section for gaps. Add a small amount where needed and smooth it into place.
Caulk begins drying within minutes, so plan to complete the entire job without interruptions. A stopping point may not seal properly, allowing moisture and mildew to enter. Let the new caulk dry overnight before using the tub or shower.
Send this to someone with bathroom maintenance on their weekend list. For more maintenance tips, visit https://bit.ly/46tlJrF.
