Lawrence Katz, PhD, is a consultant at LEK Consulting, a firm providing consulting services in the chemicals and coatings industry. He is an "Expert" legal witness in cases where the application of science is called for. Dr. Katz has more than 31 years of experience in polyurethane coatings, elastomers, binders, and sealants. Dr. Katz has experience in planning; supervising; specifying coating testing; evaluating equipment; and laying out technical protocols for evaluating, paints, sealants adhesives, and elastomers. He specializes in waterborne, solvent borne, and powder coatings. Dr. Katz has 27 US patents in pesticides, biocides, fungicides, chemical processes, coatings, sealants, binders, catalysts, polymers, nitrification inhibitors, chemical intermediates, polyurethanes, and silanes.