Loctite Polyseamseal 100% Silicone Sealant is specifically formulated to create a tough, watertight seal. It also contains an effective mildewcide that inhibits the growth of mold and mildew on caulk surfaces. This special formulation makes Loctite Polyseamseal 100% Silicone Sealant ideal for use in humid or steamy areas, such as the kitchen and bathroom. In fact, it has a fast-dry system that withstands water contact 2 hours after application, so you can shower or take a bath in virtually no time. Loctite Polyseamseal 100% Silicone Sealant can also withstand many environmental elements, including ultraviolet light and temperature extremes of -65 deg F to 300 deg F, so it's suitable for heating and cooling (HVAC) applications, as well. Use Loctite Polyseamseal 100% Silicone Sealant to form a weatherproof bond on a variety of common materials, including glass, ceramics, aluminum, primed steel, and some plastics.