About

Sealing Devices Inc. is a manufacturer, fabricator and distributor of O-Rings, gaskets, EMI shielding and sealants for all types of sealing applications.

Since 1963, Sealing Devices has been a proud manufacturer, fabricator, and distributor of O-Rings, gaskets, EMI shielding and thermal interface materials, custom molded rubber parts, protective vents, tapes, adhesives, and sealants for all types of sealing applications. With over 200 pieces of state-of-the-art manufacturing equipment, our goal is to be your trusted partner for all of your seals and gasketing needs. 

Our wide range of capabilities consist of fabrication, die-cutting, waterjet and laser cutting, slitting, laminating, form-in-place gasket dispensing, injection, compression and transfer molding, and specialized packaging and barcoding. We’re an authorized distributor for Parker, Gore, 3M, Rogers, Loctite, and many other world leading sealing materials manufacturers, supplying to the Transportation, Aerospace, Military, Electronics, Communications, General Industrial, Fluid Power industries.  

Sealing Devices Quality Management Systems are certified to AS9100D and ISO 9001:2015 standards and we are ITAR registered. Sealing Devices is headquartered in Buffalo, NY, with additional offices in Rochester, NY; Erie, PA; Colorado Springs, CO; and Melbourne, FL.