Fiberglass, glass wool, what's the difference?

Glass wool belongs to a category of glass fibers, and glass fibers include glass wool.
According to the shape and length of glass fiber, it can be divided into continuous fiber, fixed length fiber and glass wool; according to the glass composition, it can be divided into alkali-free, chemical resistance, high alkali, medium alkali, high strength, high elastic modulus and alkali resistance ( Alkali-resistant) glass fiber, etc.
The main raw materials for producing glass fiber are: quartz sand, alumina and pyrophyllite, limestone, dolomite, boric acid, soda ash, mirabilite, fluorite, etc. The production methods can be roughly divided into two categories: one is to make molten glass directly into fibers; the other is to make molten glass into glass balls or rods with a diameter of 20mm, and then heat and remelt them in various ways to make them into fibers with a diameter of 3-3mm. 80μm very fine fiber. The infinitely long fibers drawn by mechanical wire drawing through platinum alloy plates are called continuous glass fibers, commonly known as long fibers. Discontinuous fibers made by rollers or air flow are called fixed-length glass fibers, commonly known as staple fibers.
Glass fibers are divided into different grades according to composition, properties and uses. According to standard grades, E-grade glass fiber is the most commonly used and widely used in electrical insulation materials, and S-grade is special fiber.