Founded in 1974, Seal Methods, Inc. (SMI) is a full service premier fabricator of gaskets, tapes, seals and precision die cut ... s. We are one of the most diversified converters in the industry. SMI’s customers and suppliers are valued partners whom we treat with dignity, integrity and trust. Our association with the finest raw material manufacturers throughout the world enables us to provide the widest possible selection of materials to meet your needs. SMI USA encompasses over 300,000 square feet of manufacturing space. This includes our state-of-the-art 60,000 sq/ft headquarters in Santa Fe Springs, CA, our 20,000 sq/ft facility in Northern California, and our new 250,000 sq/ft operations in Nanjing, China with full converting capabilities, molding and extrusion lines. Our technical sales team and experienced staff help provide our customers with solutions globally. SMI can help! read more