Editing Calcium silicate (section)

===High-temperature insulation===
[[File:Calcium silicate cladding 2of2.jpg|thumb|left|Calcium-silicate [[passive fire protection]] board being clad around steel structure in order to achieve a [[fire-resistance rating]]]]
Calcium silicate is commonly used as a safe alternative to [[asbestos]] for high-temperature insulation materials. Industrial-grade piping and equipment insulation is often fabricated from calcium silicate. Its fabrication is a routine part of the curriculum for insulation [[apprentice]]s. Calcium silicate competes in these realms against [[Mineral wool|rockwool]] and proprietary [[Thermal insulation|insulation]] solids, such as [[perlite]] mixture and [[vermiculite]] bonded with [[sodium silicate]].  Although it is popularly considered an asbestos substitute, early uses of calcium silicate for insulation still made use of asbestos fibers.