Three Differences Between Glass Wool And Rock Wool

1. Glass wool production process:

Centrifugal glass wool is made of glass as the main raw material, mixed with other various auxiliary materials in a certain proportion, then sent to the glass melting furnace to fully melt, and the melted solution flows out through the leakage plate and enters the centrifuge. Driven by the high-speed centrifuge, the centrifuge spins the glass into a thin stream of glass. Under the action of the high-temperature and high-speed flame, the thin stream of glass is further stretched into fibers, and then atomized binder is applied to the cotton net Under the action of the belt's negative pressure wind, the fibers attached with the resin binder settle on the moving mesh belt to form a uniform cotton felt. Then the curing process is completed in a constant temperature curing oven, and the product is shaped. After the shaping, it is cut to become The predetermined product is then packaged.

2. Rock wool products are made of refined basalt as the main raw material. After high-temperature melting, the inorganic fibers are made by high-speed centrifugal equipment, and then special binder and dust-proof oil are added to the swing belt and the fiber arrangement structure is changed by special equipment. , A new type of lightweight insulation material made by curing and shaping. According to different purposes, it can be processed into rock wool board, rock wool joint felt, rock wool tube shell and other products.

3. Product performance is different

 Glass wool has lower bulk density than rock wool, less slag ball content, low thermal conductivity, long service life, and greater fiber toughness. However, the use temperature of rock wool is about 600 degrees Celsius, and glass wool is only about 260 degrees Celsius.

4, product uses are different

Glass wool is generally used for heat preservation parts below 200 degrees Celsius, and is mostly used for heat preservation of general buildings or low-temperature pipelines. Rock wool is generally used for heat preservation parts with a temperature of 500 degrees Celsius, and is mostly used for heat preservation of high-temperature thermal pipelines or power equipment.