Re-caulk a tub or shower

Fresh caulk makes a bathroom look new and keeps water out of the wall. The trick is complete removal of the old caulk and a dry, clean joint.

Remove the old caulk

1. Cut along both edges of the old bead with a utility knife or caulk removal tool
2. Pull and scrape it out; a plastic scraper protects tub finishes
3. Clean the joint with rubbing alcohol to remove soap film
4. Let it dry completely, ideally overnight

Apply new caulk

1. Use 100% silicone or a kitchen and bath caulk labeled for tubs and showers
2. Put painter's tape along both sides of the joint for a crisp line
3. Fill the tub with water first so it settles to its working position
4. Cut the nozzle small and run a steady, continuous bead
5. Smooth it with a gloved finger or tool in one pass
6. Pull the tape right away and let it cure for the time on the tube before using the shower

General DIY information. Follow the instructions for your tools and products, wear eye protection, and stop if anything feels unsafe. Easy Home Tasks isn't paid by any brand or store.