Sealing Devices Inc.
ManufacturingNew York, United States51-200 Employees
Sealing Devices Inc. is a Lancaster, New York-based manufacturer and fabricator of sealing components, including gaskets, O-rings, seals, adhesives and sealants, vents, and molded rubber parts. The company specializes in sponge fabrication with bun-splitting and welding capabilities and provides application engineering assistance to support cost-downs and project evaluations. Founded in 1963 and privately held by a family, it serves general industrial sealing needs and EMI shielding, venting solutions, and adhesive recommendations, with authorized lines from Parker Engineered Materials and related brands. Positioned as one of the larger privately owned sealing specialists in North America, it counts major OEMs across industrial, transportation, military/aerospace, and electronics among its customers. The firm is ITAR registered and holds AS9100D and ISO 9001:2015 certifications, with recent recognition including the Parker 2025 National Geared for Growth Award and regional honors such as the Buffalo Niagara Economic Champion.