Lucas #316 Asphalt Primer is a fast drying asphalt primer intended for use on masonry, concrete, wood decks and parapet walls prior to application of asphalt built up or modified bitumen roofing systems. This Primer should also be used before resurfacing weathered asphalt and granular surfaced modified bitumen roofs. It is manufactured from refined high softening-point asphalt and fast drying petroleum solvents.