Superior Seals | Exceptional Service
Premier Manufacturer and Distributor of Seals & Gaskets
Superior Seals
Exceptional Service
WE ARE ISO9001:2015 & AS9100D CERTIFIED.
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O-Rings
O-rings from Parker’s O-ring and Engineered Seals Division are available in both standard and metric sizes.
Gaskets
Die-cut gaskets and industrial gaskets are available for needs of temperature, chemical compatibility, pressure and more.
Molded Rubber Parts
Custom molded rubber parts made in the US have several advantages and are available for compression, transfer, and injection molding.
EMI Shielding
We offer EMI shielding O-rings and EMI conductive gaskets for ruggedized and outdoor EMI applications.
Thermal Management
We provide Thermal Interface Materials from Parker Chomerics. These materials have been designed into many applications.
GORE Vents
GORE vents let sealed enclosures breathe, allowing airflow in and out, and improve enclosure failed seals performance.
Sponge Cellular Foams
When designed for the application, sponge is an ideal solution for sealing out harsh environmental elements to help engineers meet IP specs.
Adhesives & Sealants
We offer pressure-sensitive adhesives (PSA’s), tapes, threadlockers, epoxies, sealants, and one or multi-part sealants.
Events
Latest Post
Molded Rubber Parts vs. Die-Cut Gaskets
If you're new to sourcing sealing components, it's easy to get overwhelmed by the number of options available. A common question we hear from engineers and buyers alike is: What’s the difference between molded rubber parts and die-cut gaskets—and which one should I...
How Heat and Humidity Impact Sealing Performance—and How to Prevent Summer Seal Failures
As temperatures rise, sealing performance can suffer. Summer heat, humidity, and UV exposure pose major challenges for gaskets, O-rings, and enclosure seals—especially in outdoor, industrial, or electronics applications. If you're not using the right materials or...
Local Innovation Targets Global Problem: A UB Breakthrough on PFAS Removal
At Sealing Devices, we’re proud to manufacture just outside Buffalo, New York—a region known for its industrial history and growing reputation for advanced materials research. That reputation just got a boost. Scientists at the University at Buffalo (UB) have made...
About Us
It all started with an investment of $157

July 1966
Sealing Devices moved to an old battery manufacturing plant on Neoga Street in Depew, NY to keep up with the expanding business.
July 1963
Terry Galanis, Sr. launched Sealing Devices Inc. from his Alden, NY home
