Calcium silicate used as an anticaking agent in food preparation, including table salt and as an antacid. It is approved by the United Nations' FAO and WHO bodies as a safe food additive in a large variety of products. It has the E number reference E552. 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 apprentices. Calcium silicate competes in these realms against rockwool and proprietary insulation solids, such as perlite mixture and vermiculite
Building insulation materials are less itchy and create less dust. You can also look for fiberglass products factory-wrapped in plastic or fabric. Fiberglass is energy intensive in manufacture. Fiberglass fibers are bound into batts using adhesive binders, which can contain phenol formaldehyde, a hazardous chemical known to slowly off-gas from the insulation over many years. The industry is mitigating this issue by switching to binder materials not containing phenol formaldehyde; some manufacturers offer agriculturally based binder resins made from soybean oil. Formaldehyde-free batts and batts made with varying amounts of recycled glass (some approaching 50% post-consumer recycled content) are available. Cellulose is 100%