Silicone 2+ window and door sealant is 100% waterproof and weatherproof and is rain-ready in as little as 30 mins. Formulated for a wide range of projects exposed to harsh weather from the attic to the basement. It is permanently flexible with a 10 year mold-free product protection. It will not discolor most metal finishes and adheres to porous materials such as brick and mortar. Guaranteed for as long as you own your home.100% waterproof, weatherproof, freeze proof and sun proof30 mins rain ready10 years mold-free product protectionWill not discolor high end metal finishes such as chrome, bronze and nickelExcellent adhesion for wet and dry applications