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Products

Concrete Waterproofing Admixture


Krystol Internal Membrane™ (KIM®)

Krystol Internal Membrane | Crystalline Admixture

KIM is used in place of externally applied surface membranes to protect against moisture transmission, chemical attack and the corrosion of reinforcing steel.

Available in mixer-ready bags in custom sizes to match your mix design

How It Works

Krystol Internal Membrane or KIM is an integral crystalline concrete waterproofing admixture; and a PRAH (Permeability Reducing Admixture – Hydrostatic Conditions). When combined with water, KIM’s proprietary chemicals react to form millions of needle-like crystals. These crystals grow and fill the capillary pores and micro-cracks in the concrete, blocking the flow of water. As time passes and stresses form new cracks, any incoming moisture causes the crystals to reactivate – ensuring continuous waterproofing over the years.

Product Benefits

  • Lowers the cost of waterproofing by as much as 40%
  • Helps to shave weeks off of construction schedules
  • Reduces the cost of maintenance and repairs
  • Increases reliability and quality control
  • Increases revenues with a larger building footprint
  • 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