DynaWeld™ Cap FR features ceramic-coated roofing granules engineered for optimal embedment in the SBS-blend sheet. The ceramic coating promotes excellent long-term adhesion. Granules are available in White, Black and Tan. The SBS rubber and asphalt blend lends elasticity and flexibility to the sheet and contains fire-retardant additives. The fiber glass reinforcement mat offers excellent dimensional stability and tensile strength and withstands differential movement. Because it has no thermal memory less time is needed to relax the sheet, allowing for ease of installation. The fiber glass mat also has good lay-flat characteristics, contributing to better aesthetics. The polyolefin burn-off film promotes ease of heat welding.