What is silicone? Well, imagine a super substance which is:
- Water repellent
- Heat resistant
- Non-toxic
- Mold- and fungus-resistant
- Long-lasting
- Strong, yet flexible and rubberlike
That's silicone for you. This useful material can shape-shift into various forms. It's caulk, it's grease, it's resin, it's rubber! In home improvement terms, "silicone" usually describes the caulk incarnation.
If moisture penetrates into parts of your home where it's not supposed to be, like your subfloor or your tile backer board, it will eventually cause serious damage. Think structural weakening (yikes!) and the growth of mold and mildew (eew!).
Silicone to the rescue! Apply moisture proof silicone caulk to seal the gaps between surfaces in your bathroom and prevent leakage. Use it any place two surfaces join together. Here are just a few examples to get you started:
- the edge of the sink, where it meets the vanity or your tile backsplash
- the side of your bathtub, where it joins the tile tub surround
- the top of a tile wall, where it connects to the bathroom ceiling
- the edge of a toilet, where it meets the tiled floor
Purchase silicone caulk at your local hardware shop or home store. There are several types available. The traditional form is a sort of goo that comes in a plastic canister to be loaded into a special refillable metal holder called a "silicone gun." It's the most cost-effective for large jobs. You can also buy the caulk in a small squeezable tube or opt for a silicone spray.
When using the spray, simply shake the can, position it 15" from the surface, and spritz on evenly. Working with the caulk type is a bit trickier. If you are a silicone caulking newbie, you might want to practice getting a smooth line on a piece of cardboard first. Hold the applicator at a 45-degree angle and apply in a steady motion. Press down the length of the caulk with your dampened fingertip (this is where the latex gloves come in handy) to ensure you've created a good seal.