For vacuum or protective atmosphere process furnace insulation, carbon insulation boards made of rigidized pan felt are used. Pre-firing is done at 2192?F (1200?C). The boards can be used in both square and round hot zones and are easily cut or machined to specific sizes. Due to its larger, coarser fibers, this material is more oxidation resistant and has a lower surface area than graphite sheet China made of rayon. Find out more information about our carbon insulation boards.
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