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Established 1983. Manufacture specialty technical glass compositions for sealing, dielectrics; passivating glasses for electronic applications; and precision-forming or redrawing glass and glass-ceramics. Database of 30,000 compositions. Alloy or refractory melting capability is available for customer proprietary use.

Ceramic contract machine shop that can machine special parts for R&D, low-volume and full-production quanitities. Provide a variety of unique applications in processing of difficult technical ceramic and glass materials. Manufacture and sell stationary and rotary ultrasonic machines for domestic and international markets.

Produce alpha- and beta-SiC powder for use in sintered wear parts, toners, MMCs and abrasives. Produce PS SiC tile for armor. Produce advanced (graphite) materials for use in many industries. Products include graphite electrodes, carbon alloys, graphite lubricants, purified graphites and mined natural graphites.

Established 1977. Provide custom melting, forming and milling of glass and glass ceramic compositions, pounds to tons. Offer technical assistance and composition engineering. Electric & gas melting to 1650°C. Production flexibility allows for standard and custom tailored materials (e.g. frit/cullet, ultra fine powder and rod) to meets individual requirements.

Produce high-performance structural ceramics, including pressureless-sintered SiC, hot-pressed boron carbide, hot-pressed silicon nitride and hot-pressed aluminum nitride.

Established 1956. Manufacture conductive, resistive and dielectric pastes and fine powders of metals and metal oxides for electronic application; precious metal/salt, precious-metal catalyst and liquid precious metal for industrial applications. U.S. subsidiary: Shoei Electronic Materials Inc., New Castle, Del.

Established 1898. Manufacture custom technical ceramics components using extruding, dry-pressing, isopressing, green-forming and diamond-machining techniques. Also manufacture prototype through production quantities on contract. Primary materials are alumina, zirconia, steatite, cordierite, mullite, lava, BN and Macor. Supply to a variety of industries where applications include wear resistance, corrosion resistance, high-temperature use as well as electrical and electronic insulation.

Specialty pre-ast refractories company servicing the heat-treating and coke-making industries.