Call us on 01202 785200


Parking decks bridges pu | Mariseal 250

Mariseal 250

A premium, liquid-applied, highly permanent elastic, one component polyurethane membrane used for long-lasting waterproofing.

Offering excellent mechanical, chemical, thermal, UV and natural element resistance properties, Mariseal 250 is based on pure elastomeric hydrophobic polyurethane resins. Cold applied, it cures by reaction with ground and air moisture. Ideal for waterproofing roofs, balconies, under tile wet areas, traffic decks and green roofs. It is also proven for concrete constructions like bridges, decks, tunnels, car parks etc.


  • Simple roller or spray application
  • Resistant to water, frost and root penetration
  • Seamless
  • Crack bridging up to 2mm, even at -10°C
  • Can waterproof old bitumen and asphalt roofs by overlaying them
  • Excellent adhesion
  • Maintains mechanical properties over temperature span of-40°C to +90°C
  • Surface finishes available for pedestrian and vehicular traffic


  • Roof Waterproofing
  • Waterproofing of Balconies, Terraces, and Verandas
  • Waterproofing of Wet Areas (under-tile), such as Bathrooms, Kitchens, Balconies, and Auxiliary Rooms
  • Waterproofing of Pedestrian and Vehicular Traffic Decks
  • Waterproofing of Green Roofs, Flowerbeds, and Planter Boxes
  • Waterproofing of old Bitumen felts, Asphalt felts, EPDM and PVC Membranes, and old Acrylic Coatings
  • Protection of Polyurethane Foam Insulation
  • Waterproofing and Protection of Concrete Constructions – incl. Bridge-Decks, Tunnels, Stadium Stands, and Car Parks

Call us on 01202 785200