What Are the Different Types of Tub Caulk?
Use caulk to seal the area around tubs, sinks, and other wet area enclosures. It prevents water from seeping into areas where the moisture would eventually create mildew, mold, or rot the underlying structure. Several different types of caulk are used to seal the area around a tub. The best choice depends on the tub materials. Silicone caulk is flexible. This makes it the ideal form of caulk to use under and around a fiberglass enclosure. Fiberglass moves when it fills with water or when someone steps into the tub or shower enclosure. This motion is slight, but if the caulk does not flex with the motion, it will eventually pull away from the enclosure, allowing moisture in.
