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High Temperature Potting and Casting Materials

Tech Bulletin A4

Aremco offers the most expansive range of ceramic-based materials used for the assembly of high temperature, high power electrical devices as well as high temperature fixtures, molds and tooling. These materials, based on aluminum oxide, aluminum nitride, magnesium oxide, silicon dioxide, silicon carbide, zirconium oxide, and zirconium silicate, offer unique properties with respect to operating temperature, thermal conductivity, dielectric and mechanical strength.

Ceramacast™ products are supplied in either one- or two-part systems. One-part systems are typically mixed with water or a specialty binder system that is used to improve moisture resistance. Materials set at room temperature in several hours, then cure at ~250 °F in 2-4 hours to provide optimal electrical and mechanical properties. Two-part systems have varying set times and are similiarly cured at 250 °F in 1-2 hours.

Ceramacast™ 905 (Case-Resistor)
High Temperature Potting and Casting Materials
Part No.
Ceramic Filler
General Features

Ceramacast 510
Coarse Grain Castable for Large Tooling

Ceramacast 575
Fine Grain Potting Compound

Ceramacast 575-N
Fine Grain Potting Compound

Ceramacast 576-N
Medium Grain Castable & Potting Compound

Ceramacast 675-N
Fine Grain, Thermally Conductive Potting Compound

Ceramacast 584
Two-Part, Fast-Set Potting Compound

Ceramacast 645-N
Thermally Insulating, Low Expansion Compound

Ceramacast 905
Moisture Resistant Silicone, Coarse Grain, Large Sections

Ceramacast 905-FG
Moisture Resistant Silicone, Fine Grain, Small Sections

Ceramacast 673
Two-Part, Fast-Set, Fine-Grain Castable

Ceramacast 673-N
Medium Grain Castable for Large Tooling

Ceramacast 646-N
Medium Grain Castable & Potting Compound

Ceramacast 505-N
High Strength Compound for Small Potting Applications

Ceramacast 586
High Strength Castable & Potting Compound

Ceramacast 900-N
Fine Grain Castable for Small Tooling

EZ-Cast 580-N
Silicone Molding Compound, High Flex & Tear Strength

Ballast Resistors, Cartridge Heaters, Case Resistors, Ceramic Fiber Heaters, Electrical Feed-Thrus, Gas Ignitors, Halogen Lamps, High Temp Air Filters, Infrared Heaters, PTC Devices, Rheostats, Temperature Sensors.

Brazing Fixtures, Crucibles, Encapsulating RF Coils, Furnace Carriers, Heating Element Holders, Induction Heating Tools, Molds for Powder Metallurgy, Rapid Prototype Molds, Sintering Boats, Standoffs, Welding Jigs.

Ceramacast, Cerama-Dip, EZ-Cast