I’m constantly replacing the caulk between my shower walls and floor due to mold. How can I prevent mold from forming on the caulking in my shower?
– Bill
Hi Bill,
Any time you put caulking in a high-moisture environment, such as in a shower or tub, the result is usually mold and mildew. One thing I always recommend is to use 100% silicone caulking in a tub or shower rather than acrylic caulk. The caulk you use in a tub or shower should also contain a biocide to prevent mold from forming.
While several manufacturers have come out with pretty good mold-resistant caulk, I’ve really been impressed with GE Silicone II* K/B Supreme.
Advantages of GE Silicone II* K/B Supreme include:
- Cures Fast: Can be ready for use in as little as one hour and no more than eight hours (depending on temperature, humidity, and size of the bead).
- Mold-Free: Contains a biocide that keeps the caulk mold-free for 10 years if the caulk is cleaned regularly.
- Waterproof: 100% silicone caulk is and remains waterproof over time.
- Flexible: 100% silicone caulking doesn’t crack or shrink and remains flexible over time.
Good luck with your project,
Further Information
- How to Caulk Around a Tub (video)
- Homeowner’s Guide to Caulking (article)
