Thermal insulation materials and methods of making same

摘要

A strong light weight insulation material having a calcium silicate binder and which inhibits corrosion of stainless steel. The insulation material is substantially devoid of the usual soluble chloride impurities, and includes from 1 to approximately 15 percent of sodium or potassium silicate, and preferably has no more than 1000 parts of chloride ion in 1 million parts of the insulation material.