Seal & Design Inc | 2,294 followers on LinkedIn. Seal & Design Inc. is a world-class manufacturing and distribution company specializing in all types of sealing products | Seal & Design Inc. is a leading manufacturer and global distributor of die cut gaskets, seals, O-rings, molded rubber, and plastic products to the automotive, mass transit, defense, medical, electronics, OEM equipment, HVAC, hydraulics, and many other commercial industries. Headquartered in a state-of-the-art 100,000 sf, IATF 16949:2016 certified factory in Clarence, NY, Seal & Design operates an additional three ISO 9001:2015 certified locations around the Eastern US and Canada.   Seal & Design’s workforce is second to none and takes great pride in delivering world-class customer service and products while providing in-depth technical support/solutions for our customers.