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Crystalline Slurry Coating

Reactive crystalline slurry that penetrates concrete and grows insoluble crystals to permanently seal capillaries.

Self-HealingPermanentNegative PressureNSF 61 Potable
COVERAGE0.8–1.0 kg/m²
PENETRATIONUp to 300 mm
CURE (CONTACT)5–7 days
SHELF LIFE12 months

Overview

Doesn't coat the concrete. It becomes the concrete.

Crystalline Slurry Coating is a reactive crystalline waterproofing coating that becomes a permanent part of the concrete structure. Active chemicals diffuse through the concrete capillaries, react with moisture and free lime, and grow insoluble crystals that block water passage. Unlike membrane systems, it cannot peel, puncture, or detach.

Self-heals fine cracks up to 0.4 mm by reactivating with future water exposure. Suitable for water tanks, basements, and any structure where permanent integral waterproofing is required.

Key Features

  • Reactive crystalline chemistry – penetrates and seals from within
  • Self-healing – reactivates with water exposure to seal new cracks
  • Resists 14 bar+ positive and negative hydrostatic pressure
  • Cannot peel, blister, or wear off – permanent
  • Potable-water certified (NSF 61)
  • Allows concrete to breathe (vapour-permeable)

Technical Specs

Technical Specifications

All values measured at 23°C unless noted. Full test data available in the datasheet.

PropertyValueUnit
FormSingle-component grey powder
Active chemistryPortland cement + reactive compounds
ColourGrey
Mixing ratio5 parts powder : 2 parts water
Mixed density2.0 ± 0.1g/cm³
Pot life at 25°C30minutes
Coverage per coat0.4–0.5kg/m²
Total system coverage0.8–1.0kg/m²
Crystalline penetrationUp to 300mm
Crack bridging (self-heal)Up to 0.4mm
Hydrostatic resistanceUp to 14bar
Compressive strength gain+10–20%
Service temperature−30 to +130°C
StandardsNSF 61 · ASTM E96 · EN 1504-3

Applications

Where this product is used

Five typical site applications where our crews specify this product.

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Water tanks

Potable and non-potable water tank waterproofing.

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Basements

Both positive and negative side waterproofing of basement walls and slabs.

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Tunnels

Cut-and-cover and bored tunnel waterproofing.

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Retaining walls

Earth-retaining structures with negative-pressure conditions.

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Swimming pools

Pool shell waterproofing as primary or secondary protection.