What material is glass wool made of?

Glass wool is an insulating material made of glass fibers, which are arranged in a texture similar to wool with adhesive. This process captures many small bubbles between the glasses, which leads to high thermal insulation performance. Glass wool is produced in the form of roller or plate, which has different thermal and mechanical properties. It can also be made into a material that can be sprayed or applied to the surface to be insulated in place. The modern method of producing glass wool was invented by Games Slayter, who worked in Owens-Illinois Glass Company at that time.

Natural sand and recycled glass were mixed and heated to 1 450°C to make glass. Glass fiber is usually produced by a method similar to making cotton candy, which is forced through a fine mesh by centripetal force and cooled when it comes into contact with air. Adhesion and mechanical strength are obtained by adhesives, which "bond" fibers together. Drop a drop of adhesive across each fiber. Then, the fiber felt is heated to about 200.d egree. C. until the polymeric resin is calendered and its strength and stability are obtained. Finally, the wool mat is cut into small pieces, packaged into rolls or plates, stacked on a tray and stored for later use.

Glass fiber can irritate eyes, skin and respiratory system, so stay away from this material and don't touch it. I hope my answer is helpful to you!