ZAL-15 is an engineered low-density structure exhibiting very good hot strength and dimensional stability in industrial applications with continuous operating temperatures to 1550°C (2822°F) – withstanding intermittent use to 1650°C (3002°F).
Alumina Type ZAL-15
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Description
ZIRCAR Ceramics’ Alumina Type ZAL-15 is an engineered low-density, rigid refractory structure composed of high-alpha polycrystalline alumina fibers and high-purity inorganic binders. ZAL-15’s uniformly-bound, fine, open-pore structure makes it an excellent thermal insulator with precision machinability. ZAL-15 exhibits very good hot strength and dimensional stability in industrial applications with continuous operating temperatures to 1550°C (2822°F) and withstands intermittent use to 1650°C (3002°F). High-purity silica is the binder in ZAL-15 – which makes it one of the strongest low-density fiber bodies manufactured today. ZAL-15 exhibits high electrical resistivity at elevated temperatures and is also transparent in microwave and RF energy fields. ZAL-15 is pure white and exhibits high reflectance.
ZAL-15 is pre-fired contains no organic binders and will produce no smoke or odors when heated. ZAL-15 shows excellent resistance to chemical attack and is not affected by oil or water. It is, however, affected by hydrofluoric acid, phosphoric acid and strong alkalis.
Additional information
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