FillGard M Pourable Sealer is a self-contained application system using dual-cartridge pourable sealer technology that delivers a consistent mixing with less waste than conventional pourable sealers mixed by hand. A two-component polyurethane sealant, Firestone FillGard M combines to produce a durable sealant that becomes solid in less than one hour. In addition, the static mixer allows the applicator to direct the precise amount of pourable sealer exactly where it is needed.