Plus, it stands out from other waterproof technologies because it's paintable, making it perfect for moisture-prone areas that require a polished finish. Ideal for use as bathroom caulk or shower caulk, this hybrid formula combines the superior durability of silicone sealant with the paintability of an acrylic sealant. It effectively seals showers, tubs, countertops, backsplashes, fixtures, plumbing, sinks, tile, and more.