RV Roof Magic- Fix RV roof leaks once. 15 year history of success. Can be applied at any temperature above freezing with humidity of 60% or more ! Dries in 3-4 hours. ONE COAT APPLICATION! Never a Primer needed! Apply today drive off tomorrow. Contains built in fungicide and mildewcides. Single component product-No need for mixing additional components or measuring No thinning necessary UV and ozone resistant.