DERMAFLASH:
is a trowel grade, solvent based, synthetic rubber modified bitumen compounded with reinforcing fillers, gelling agents, antioxidants and antiozonants along with special additives. DERMAFLASH is thixotropic in nature and excellent properties that will with stand the extreme expansion and contraction movement of high stress aread of a roof such as flashing and joints. It is recommended as a sealant in joints with an expected movement not exceeding 20%