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Enviro Hydrostatic 1 – Flexible Cementitious Waterproofing Membrane
$297.00 $197.00 Inc. GST
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Enviro Hydrostatic 1 is a premium, flexible cementitious waterproofing membrane designed for positive and negative hydrostatic pressure. Ideal for basement walls, lift pits, ponds, and concrete structures, it delivers superior adhesion, flexibility, and long-term protection against water ingress — even on damp surfaces. Available in 15Kg Bags.

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Key Features

  • Flexible polymer-modified
  • Bonds to damp surfaces
  • No primer required
  • Immersed & underground
  • Positive & Negative pressure
  • Excellent vertical hold-up
  • Resists carbonation and salt attack
  • Easy single-part system

Typical Uses

  • Structural waterproofing
  • Concrete protection and sealing
  • Internal and external walls
  • Below-ground tanks and pits
  • Swimming Pools
  • Fish Ponds
  • Water Features
  • Cellar Walls

Suitable Surfaces

  • New concrete surfaces
  • Fibre cement
  • Cured renders
  • Compressed fibre cement
  • Natural stone inc. sandstone

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Product Details

Enviro Hydrostatic 1: The Ultimate Cementitious Membrane for Extreme Hydrostatic Pressure

Advanced Cross-Linking Polymer Technology for Maximum Protection

Enviro Hydrostatic 1 represents a breakthrough in cementitious waterproofing. This single-component, polymer-modified powder uses advanced cross-linking polymer technology that, when mixed with water, forms a seamless, flexible, and incredibly durable liquid-applied membrane. It is professionally engineered to provide a vapour-permeable yet completely watertight barrier, offering unparalleled protection against the most demanding waterproofing challenges, including direct, long-term water immersion and severe hydrostatic pressure from both sides of a structure.

Unmatched Performance in Positive & Negative Side Applications

What truly sets Enviro Hydrostatic 1 apart is its exceptional resistance to both positive and negative side hydrostatic pressure. It can withstand a massive 60-meter head of pressure on the positive side and a formidable 15-meter head on the negative side, making it the go-to solution for remediating leaking basements, lift pits, and retaining walls from the inside. Its powerful adhesion allows it to bond tenaciously to damp substrates without a primer, simplifying surface preparation and accelerating project timelines.

Certified for Critical & Potable Water Containment

Trusted by engineers and waterproofing specialists, Enviro Hydrostatic 1 is designed for critical applications. It is ideal for potable water containment, swimming pools, and fish ponds, providing a safe, permanent seal. The membrane resists degradation from salts, carbonation, and freeze-thaw cycles, ensuring long-term structural integrity and protection for below-grade concrete, masonry, and natural stone surfaces.

Product Limitations

No limitations were recorded in the data sheet, Please read the data sheet provided carefully for application methods and jobsite materials.