509 All Weather Modified Mastic is a solvent-based asphalt roof cement suitable for trowel application to roofings and flashings. Product adheres to wet or dry surfaces
Product has met specification requirements of ASTM D4586. Rating includes 1, 3, and 5 gallon containers.
Product has been evaluated in accordance with ASTM D3409; product achieves minimum 80% adhesion under prescribed laboratory test conditions. Rating includes 1, 3, and 5 gallon containers.