alumina Al2O3 (92-99,7%); steatite (C221); cordierite (C410); and others

FeNi; Cu; Ag72Cu; AgPd5Cu26,5; MoMn; ...


hydraulic, isostatic, extrusion pressing, machining, brazing, leaktesting, metalising, chemical nickel plating, galvanic nickel plating

Alumina is characterised by its high mechanical strength, hardness, wear resistance, high insulation resistance, low dielectric losses, vacuum-tightness and chemical endurance. Alumina is used for highly stressed parts for applications in mechanical, electrical and chemical engineering, electronics, vacuum technologies, food processing industry and in the manufacture of grinding elements requiring a variety of grades. Major industrial applications: specials, rings, bushings, wire drawing dies, tubes, gauges, brazed joint metal-ceramic parts.

Steatite with its excellent mechanical and electrical properties such as strength and electric insulation resistance is suitable for applications in electrical engineering and manufacture of metallised ceramics. Major industrial applications: specials, tubes, plates, bushings, coils, supports, ceramic capillary tubes 

Cordierite is highly resistant to thermal shock, has a low thermal expansion, provides excellent insulation properties in high relative humidity conditions and is highly resistant to aggressive substances. Major industrial applications: power switch components, regulating rheostat components, catalyst substrates

Tab. for ceramics :

Oxide ceramics based on Al2O3
Steatite and cordieritte ceramics







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LAPP Insulators Alumina s.r.o.

Kladska 916
Hradec Kralove

+420 495 407 549