Mapeproof™ SW

BENTONITE GEOTEXTILE SHEET WATERPROOFING MEMBRANE FOR SALT OR CONTAMINATED WATER APPLICATIONS

Mapeproof SW waterproofing membrane is composed of sodium bentonite encapsulated between a woven and nonwoven polypropylene geotextile fabrics. The nonwoven fabric is needle-punched through to the woven fabric, mechanically locking the sodium bentonite clay in place with thousands of fibers. In the presence of water, the sodium bentonite hydrates and swells forming a monolithic waterproofing membrane. Ideal for horizontal slabs, vertical blindside and backfilled wall applications in the presence of salt or contaminated groundwater conditions.

Features and Benefits

  • Includes a special additive for mitigating the affects of salt and contaminated water on the swell index
  • High swelling index helps prevent water intrusion
  • Can be installed over damp or green concrete at least 3 days old
  • Self-healing if punctured
  • Not affected by rises and falls in the water table

 

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