SEEPAGE REMEDIATION BY POSITIVE CUT-OFF WALLS: A COMPENDIUM AND ANALYSIS OF NORTH AMERICAN CASE HISTORIES Dr. Donald A. Bruce, President, Geosystems, L.P., U.S.A.
Polyurethane Amine Catalysts Amine catalysts can be used in a variety of polyurethane foam applications, including automobile seat cushions, upholstered furniture and mattresses, refrigerators and freezers, and roof and wall