The ArmorSeal 100 AL formulation is our best roofing liner to date, part of our ArmorLine series of spray-on coatings. It’s a 1:1, two-component system that’s liquid applied but composed of 100% solids, containing no solvents or volatile organic compounds (VOCs) that make other coating technologies comparatively less safe and sustainable. ArmorSeal exhibits the same fast-setting behavior that polyurea coatings are famous for and can be applied to all of the most common roofing materials, including metal (aluminum, copper, and zinc), concrete, fiberglass, and wood.