GE Silicone II Kitchen/Bath/Plumbing - THREE-HOUR SHOWER-READY The shower doesn't have to be off-limits for a full day. Caulk the shower or tub with GE Silicone II* Kitchen & Bath and reduce the wait time dramatically. GE Silicone II* adheres to a wide variety of substrates and quickly builds a tight seal that can be exposed to water as little as three hours after application. Some caulk requires wait time of a full day or longer before using the shower or the caulk might wash away. FIVE-YEAR MOLD-FREE PRODUCT PROTECTION Mold-free product protection helps keep the cured caulk mold- and mildew-free and looking clean for five years, with regular cleaning. Mold is not only an unsightly and embarrassing problem to have around a tub or shower, but it might also lead to health problems. Some caulk might claim limited protection, but GE Silicone II* Kitchen & Bath is formulated for increased protection. Why 100 percent silicone? Unlike acrylic, silicone is permanently: Waterproof—Acrylic breaks down in water over time. Flexible—Acrylic becomes less flexible and can even freeze at low temperatures, making it more likely to . Shrink-proof—Acrylic shrinks as the caulk dries. This shrinking can cause s over time. -proof—Acrylic hardens, s and crumbles over time when exposed to extreme heat and the sun's UV rays. Made in USA.