Krystol Internal Membrane (KIM) Waterproofing Concrete Admixture turns an entire concrete mass into a waterproof barrier. When the dry powder is combined with water during mixing, its proprietary chemicals react to form millions of needle-like crystals. KIM permanently waterproofs concrete, increases reliability and quality control, shaves weeks off the construction schedule, and reduces the cost of maintenance and repairs. Kryton International, Inc. www.kryton.com