KIM - Krystol Internal Membrane

KIM - Krystol Internal Membrane
KIM - Krystol Internal Membrane

Krystol Internal Membrane (KIM) is a hydrophilic crystalline admixture used to create permanently waterproof concrete.

KIM lowers the permeability of concrete, and is used in place of surface applied waterproofing membranes. By stopping the transmission of water through concrete, KIM adds durability and longevity to concrete by protecting it against chemical attack and corrosion of reinforcing steel.


KIM contains Krystol technology. When added to concrete, Krystol chemically reacts with water and un-hydrated cement particles to form insoluble needle-shaped crystals that fill capillary pores and micro-cracks in the concrete and block the pathways for water and waterborne contaminants. Any moisture introduced over the lifespan of the concrete will initiate crystallization, ensuring permanent waterproofing protection.

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    Lowers the cost of waterproofing 

    Helps to shave weeks off of construction schedules

    Reduces the cost of maintenance and repairs

    Increases reliability and quality control

    Safe for contact with potable water and Certified by NSF to NSF/ANSI Standard 61 Drinking Water System Components – Health Effects

    Winner of the Most Innovative Product Award at World of Concrete in 2003

    Case Studies

    Marina Bay Sands Integrated Resort
    Singapore, Singapore

    TELUS Garden
    Vancouver, BC, Canada

    Atlantic Square
    Glasgow, Scotland


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