A heavy bodied wet/dry rubberized Mastic cement formulated specifically for use by the professional roofing contractor who demands high performance. Precisely blended from durable roofing Asphalts, select petroleum solvents, and tough interlocking fibers. Using the latest formulation technology, Q-15 Flashing Cement is blended to a smooth heavy bodied Mastic which is easy to apPly yet retains vital thixotropic properties. May be used in wet or dry situations. Adheres to all roofing surfaces, remains pliable and will not run. Maintains consistency over a wide temperature range. 100% Asbestos Free.