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Products: Rock Wool Board
Type: Board
Density(kg/m3): 60-200
Work Temperature: 650C
Size(mm): 1200*600/1000*630
Thickness(mm): 30-100
Packing: Thermal Shrinkage Film

Rock wool products are made from selected high-quality basalt, as the main raw material. The basalt, having been melted in the copula, is centrifugalized into noncontinuous fibers of 4-7μ M by the world-advanced technique of four-roller centrifugation process. The rock wool fibers so obtained are then added with certain quantities of binder, dust laying oil and water repellent, and formed into serial products of mats, plates, insulation belts, pipcovers, etc. According to different applications through processes of sedimentation, solidification and cutting.
Rock wool products have outstanding advantages over many other insulation materials for their light bulk density, small thermal conductivity, good sound absorptance, noninflammability, wide tempreture range of application and long service life. According to estimations the use of each cubic meter of rock wool products as insulation material on industrial thermal installations can result in a saving of energy of 2500 kcal/h. Equaling to 3 tons of standard coal per year. The use of each ton of rock wool products on building can result in a saving of at least one ton of petoleum per year. Therefore, rock wool products have been widely used in building construction, petrochemical, shipbuilding, metallurgical, power generation industries and on the urban heat supply network as well as in agriculture(as a culture medium).
Rock wool products from our company, complete range of size, stable quality and non-irritation to human body, hence is an ideal insulation material for industries and buildings as well as excellent material for sound absorption and filtering.

Thermal doductivity:
The thermal conductivity of different rock wool products varies with their respective bulk density and different tempreture, mainly due to the fact that, in this material with large porosity, the apount of heat transferred by means of conduction, convection and radiation varies in their respective proportion with the changing bulk density and tempreture.
Maximum application tempreture:
The maximum application tempreture of rock wool products refers to the maximum tempreture at which it is permitted for long term application.
The softening point of rock wool fibers is between 900-1000C, so there be no change in the properties for long term use at 700C.
Non-inflammability:
Non-inflammability is of vital importance for insulation materials in either building or any other industries. Non-inflammability is defined as no combustion in any sense will occur on the samples being tested in the oven 750C under specified conditions.
The rock wool products have been certified as a non-inflammable material by Sichuan Fiber Prevention Scientific Research Institute of the Ministry of Public Security of China.
Stability in long term service:
Rock wool products feature a fair chemical stability, and no air slaking will take place even during long term service under wet conditiongs. They absorb almost no water as water repellent has been added, and the hydrophobicity of above 99% has been showned in the test according to JISA9512-1979.
The high heat resistence, good formativity as well as chemical stability and hydrophobicity can ensure the long term service of the rock wool products.
Rock wool products contains almost no corrosive ions such as F- and Cl-, and have no corrosive action to the equipment.

Sound absorption:
Good sound absorption has been shown of various industrial noise and sound in premises, especially of high frequenc noise.