This product is used on pipes in place of blankets in industries, The Pre Formed Pipe Cover provide better insulation as they fit snugly around the pipe and leave no gaps in between.
Rock wool Sandwich Panels are composed of 3 layers, the external and internal is two dyed/sided Galvanized or Aluminum corrugated plates, and core which is high density Rockwool (Mineral Wool).
Loose wool is obtained from melting and then fiberizing of minerals through centrifugal processing reaching diameters of 6 ± 2 microns with a length of 60 ± 10 millimeters.