<br />Dependent on porosity, the effective siloxane ingredient deeply penetrates the substrate within a short period of time (between 30 minutes to several hours) where it reacts to become a polymer silicone resin.<br /><br />DrySeal also protections against pollutants and damage from frost and salt, and prevents water penetration even under wind pressure. <br /><br />Typical Coverage: approx. 20 - 25 m² in a one coat application, dependent on substrate porosity">