Rawell Environmental Limited is one of the world's premier suppliers of bentonite-based waterproofing and environmental protection materials. We are the UK owned manufacturer of RAWMAT® HDB prehydrated sodium bentonite Geosynthetic Clay Liners (GCLs), and RAWSEAL® Waterstops. Rawell have been supplying bentonite based waterproofing systems since 1977 and manufacturing Rawmat® HDB, the world's ONLY prehydrated Geosynthetic Clay Liner, since 1993.

Whether you're an Architect, Engineer or Contractor, we have a range of solutions across the civil engineering and construction fields for the Structural Waterproofing, Petrochemical Secondary Containment, Landscaping and Environmental Protection sectors.