Mainstay® ML-Flex is a cementitious, acrylic based, flexible waterproofing membrane and coating. This product is suitable for permanent water immersion service. ML-Flex is used primarily to waterproof concrete structures above and below grade and as a lining. It is considered a low cost alternative that may be used in "back of house" applications or beneath theming (e.g. artificial rockwork and coral) where appearance and cleanability are of secondary importance.

Product Detail Sheet:

Mainstay ML-Flex Cementitious Waterproofing Membrane (148 KB)

Empty lined pool floor surrounded by rockworkRecommended For:

  • Back of house zoo and aquarium structures
  • Applications beneath theming or rockwork
  • Fountains
  • Water features
  • Planters
  • Reservoirs

Advantages of Mainstay ML-Flex:

  • Seals rough, deteriorated surfaces
  • Resists negative side and positive side hydrostatic water pressure
  • Produces excellent adhesion to properly prepared substrates
  • Low cost waterproofing solution