Manufacturing Manufacturing Techniques Give us a call today SEALTITE CORPORATION is ISO9001:2001+AS9100D registered. O-Ring and Gasket Manufacturing As a USA based manufacturer, we have a variety of gasket cutting tools at our disposal. While gaskets are our primary expertise, we have capabilities in molding, extrusions, kit assembly, PSA backing, individual packaging, and waterjet cutting. Manufacturing Techniques Die CuttingWaterjet CuttingMoldingKit AssemblyIndividual PackingPressure Sensitive Adhesive