Since 1913, East Rochester’s Filtros Limited has manufactured industrial porous ceramics and refractory components, with all products made on site. Its specialty is custom-shaped ceramic technology, including one-piece, gasket-free diffusers developed for corrosive ozone systems and filtration components built for demanding heat and chemical environments. Filtros also makes custom refractory supports and kiln furniture for high-temperature processing.
ISO 9001:2015
ISO 9001:2008
Refractron Technologies CorpFounded in Newark, New York, in 1984, Refractron Technologies designs and manufactures custom porous and dense technical ceramics for demanding industrial equipment. Its roughly 100,000-square-foot facility supports everything from prototypes to high-volume parts, with particular expertise in porous alumina and silicon carbide ceramics and toughened zirconia components such as its proprietary Izory®HD material. Refractron is ISO 9001:2015 and ITAR certified.NEWARK, NY
Maryland Ceramic & Steatite Co., IncFamily-owned and operated for more than 90 years, Maryland Ceramic & Steatite Co., Inc. has manufactured custom industrial and technical ceramics in Bel Air since 1955. The company produces precision steatite and cordierite components for high-temperature applications, with on-site tooling and machining that supports both prototypes and production runs. Its porous engineering structures, made through a patented process with controlled pore size and distribution, add a distinctive specialty to its ceramic work.STREET, MD
R.P. Fedder IndustrialSince 1959, Rochester-based R.P. Fedder Industrial has designed and manufactured custom and OEM filters, with its roots in the toner-bag filters made for early Xerox machines. The company also stocks and distributes standardized filtration equipment and has spent more than 40 years designing cleanrooms and clean workstations, including some of the first in the Greater Rochester area. R.P. Fedder is ISO 9001:2015 certified for custom-filter design and manufacture and joined the Rensa family in 2023.ROCHESTER, NY
TKG Industrial CeramicsFor more than 50 years, Allentown-based TKG Industrial Ceramics has made pressed and cast refractory ceramic shapes for foundries and other demanding industrial applications, including its long-established pouring cups for molten-metal casting. The company combines custom material selection, part design and tooling engineering with full batch traceability and 100% inspection, tailoring ceramics to each customer’s process. TKG is ISO 9001:2015 certified and also supplies crucibles and ladle liners through its partnership with Eastern Crucible.ALLENTOWN, PA