This new construction concrete floor was leaking ground water at a joint. Polyurethane grout was pressure injected through mechanical packers to seal off the flow. The grout was Hyperflex, a single component moisture activated material that is manufactured by SealGuard, Inc. Hyperflex is pre-catalyzed and in NSF-61 approved for potable water. The grouting was done by grouting contractor Sub-Technical, Inc.
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