SMARTCOAT 365 is a flashing-grade, stand-alone, fiber-fortified silicone mastic for direct-bond permanent repairs to many roof surfaces, wet or dry, including asphalt, single-ply, metal, and most existing coatings. Examples of use include, but are not limited to, punctures caused from hail damage or mechanically induced damage from foot traffic or HVAC servicing, fish mouths or surface cracks, and roof details such as control joints, coping joints, and gutter seams. SMARTCOAT 365 is UV-stable; it does not require a top coat and will not chalk, crack, or peel if left exposed. When you want a repair that's more than a patch, SMARTCOAT 365 is your go-to.