PERMARE® waterproofing solutions

Extending the life of utility assets

Tough, durable protection for substations, water tanks, reservoirs and sewage treatment plants.

PERMARE® waterproofing solutions are a range of durable products designed to extend the life of utility assets, including substations, water tanks, reservoirs and sewage treatment plants. Developed by Stirling Lloyd (now GCP Applied Technologies), the PERMARE® systems have a track record of success throughout the globe. PERMARE® systems are designed for the retention and exclusion of liquids from potable water and aggressive chemicals to sewage containment.

PERMARE® EP – For waste water and liquid containment such as sewage works and tanks, silos and silage tanks

PERMARE® EPW – For potable water reservoirs and containment structures


The PERMARE® waterproofing system

PERMARE®EP is a cold, spray applied membrane that cures to form a seamless, flexible membrane with a strong bond to concrete and steel. The membrane provides long-term protection and containment in the harshest of climates, ensuring retention and exclusion of liquids, including many aggressive chemicals. It is ideal for use in sewage treatment plants, lining of sewage man holes, chemical tanks, screw pumps, aeration tanks and suction tankers.

PERMARE®EPW is a two-component, epoxy polysulphide-based seamless liquid system, applied by spray, brush, roller or squeegee. The system was developed to contain potable water and protect from contamination, and is ideal for use in buried or exposed reservoirs, water towers, canals and culverts, storage tanks and silos.

Product Advantages

  • Solvent-free solution that is easy and fast to apply above and below ground
  • High humidity and temperature tolerance
  • Can be in-situ tested to ensure integrity during installation
  • Chemical abrasion and impact resistance to provide long-term protection
  • Industry-proven across the globe