Facade Waterproof is an easy to use, clear exterior wall protector and sealer that is white when applying but dries clear leaving a fully protected and waterproof wall that last for up to 25 years. Facade Waterproof can be used on all porous, mineral surfaces and is fully absorbed after 30 to 60 minutes. Facade Waterproof prevents penetration of wind driven rain, the loss of heat through the walls and helps prevent frost damage. Facade Waterproof also prevents algae and moss growth on north-facing facades and protects against the build-up of dirt so facades are easier to clean. Strong reduction of salt efflorescence.