Difference Between Glasswool Sandwich Panel and Rockwool Sandwich Panel


Glass wool sandwich panel and rock wool sandwich panel are mainly used for enclosure, building storey addition, temporary office, warehouse and so on. However, what is the difference between them? Here are three comparisons.

1、 Different from production raw materials and processes

Glass wool:
It is made of glass as the main raw material, mixed with other auxiliary materials according to a certain proportion, sent to the glass furnace for full melting, and then the melted solution flows out through the leakage plate and into the centrifuge. Driven by the high-speed centrifuge, the centrifuge operates at high speed to throw the glass into a glass trickle. Under the action of high-temperature and high-speed flame, the glass trickle is further stretched into fibers, and then atomized adhesive is applied. Under the action of negative pressure wind of cotton collecting mesh belt, the fibers attached with resin adhesive settle on the moving mesh belt to form a uniform cotton felt, Then, through the constant temperature curing furnace, the curing process is completed, and the product is finalized. After finalization, it is cut into the predetermined product, and then packaged.

Rock wool:
It's a new type of lightweight thermal insulation material made of refined basalt as the main raw material, melted at high temperature, made of inorganic fiber by high-speed centrifugal equipment, added with special binder and dust-proof oil, paved with felt through swing belt, changed the fiber arrangement structure through special equipment, and finally solidified and shaped. According to different uses, rock wool board, rock wool joint felt, rock wool pipe shell and other products can be processed.

2、 Different in use:

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

3、 Differences in performance:

Compared with rock wool, glass wool has lower bulk density, less slag ball content, low thermal conductivity, long service life and high fiber toughness. However, the maximum service temperature of rock wool is about 600 ℃, and glass wool is only about 260 ℃.