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Summary of Rockwool Thermal Insulation Material

  Rock wool insulation material is mainly made of selected high-quality basalt. A professional four-roll centrifugal cotton-making process is adopted. After melting the high-temperature solution of basalt asbestos the day after tomorrow, the basalt asbestos is stretched into 47-micron discontinuous fibers. A certain amount of binder, dust-proof oil and water-repellent agent are added to the fibers. After sedimentation, solidification and cutting, a series of products with different densities are made according to different uses.
  Because rock wool has excellent thermal insulation, it has better fire protection function than EPS foam, and is very suitable for thermal insulation of building and industrial equipment, pipes, containers and various kilns. Building thermal insulation, that is to prevent heat loss in winter and heat gain in summer, is the main application field of rock wool.
  When conducting heat preservation and insulation construction, it is required that the insulated surface be clean and dry, and that the rusty metal surface be treated.  Proper anticorrosive coating can be carried out first. The joint of thermal insulation material must be tightly butted to reduce heat loss. When multi-layer insulation is adopted, the joints of each layer should be staggered and overlapped to prevent the occurrence of cold and hot bridges. At low temperatures, the cold surface should be insulated with a vapor-proof layer, which can be used for outdoor insulation or vulnerable parts. Metal or plastic wrapping should be used for the outside, and attention should be paid to the sealing of joints and seams and overlapping of cladding. When the temperature is higher than 200 C, the insulation layer should be properly protected to prevent the thickness and bulk density of the insulation layer from changing due to thermal expansion.


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