Permatite Acrylic Sealant lasts longer and adheres firmly to most building and construction materials including wood, metals, plywood sheeting, wallboard, flexible foam and more.Features and BenefitsDoesn't dry out or crack for long-life performanceWater-based, solvent-free, low VOCFast skin overQualifies for LEED creditsNon-sagging, high solids, weather-resistant-40 250F (-40 121C)Class A fire-rated, type 1