Profile: Scp Concrete Sealing Technology Ltd. is a manufacturer and supplier of engineering systems for waterproofing solutions. Our product line includes membranes, water stops, cavity trays, filler boards, and sealants. Our dual seal is a self swelling, self healing, waterproofing membrane, comprising of a thick, tough, high density polyethylene sheet laminated to 4 kg/m2 of quality Bentonite granules. The Bentonite used in the manufacture of dual seal is capable of repeated cycles of wetting and drying without deterioration of its sealing properties. We provide a range of fillerboards to suit any construction requirement, including brickwork, isolation, and perimeter expansion joints.