The StonCor Group is a subsidiary of RPM International, a holding company with a variety of subsidiaries that are world leaders in specialty coatings and sealants serving both industrial and consumer markets. The StonCor Group combines four of the world's leading corrosion protection companies. The products offered by these companies protect plant's most corrosive environments. Stonhard is a leader in high-performance polymer floors. Plasite is a pioneer in the development of corrosion-resistant linings. Fibergrate is the inventor of the molded fiberglass grating. Carboline is a leader in high-performance coatings. The StonCor Group maintains a location in Maple Shade, N.J.