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Protecting some of the world’s most iconic structures

GCP Applied Technologies pioneered the market more than 25 years ago with PREPRUFE®, the first-ever bonded pre-applied waterproofing membrane, and continued to refine this technology ever since. The release of the PREPRUFE® Plus waterproofing system delivers unparalleled performance and ease of installation.

More than 700 million square feet (65 million square metres) of PREPRUFE® waterproofing has been applied around the world, protecting below ground spaces including:

  • Transportation systems
  • Airports
  • Hospitals
  • Museums
  • Stadiums
  • Shopping malls
  • Government buildings
  • Nuclear and industrial plants
  • Residential buildings

Our waterproofing experts support architects and applicators with material compatibility, system performance and installation guidance — helping to prevent costly change orders and project delays.


Our unique Advanced Bond Technology™ curbs water and gas ingress and keeps water from migrating between the membrane and the concrete.


The PREPRUFE® system has a 30+ year proven track record of delivering installed performance at critical sites around the world.