How is polyurethane edge-sealed rock wool sandwich panel produced?

The thickness of polyurethane edge-sealed rock wool sandwich panel is usually 50mm to 100mm, with small, flat or single-sided mirror corrugated surfaces, invisible nails, and can be installed horizontally or vertically.

The thickness of conventional color steel is 0.4mm-0.8mm, and the insulating core material includes Class A fireproof glass wool and rock wool. The effective width is 1 meter, and the length can be customized according to requirements.

Material selection for polyurethane edge sealing rock wool board:

  • Core material rock wool is made of high-quality structural rock wool with a density of 120 kg/m3 or higher and is extracted from high-quality basalt. It has excellent fire resistance, thermal insulation, non-corrosive, moisture resistance, waterproof and sound absorption properties.
  • The inner and outer metal plates of the polyurethane edge sealing rock wool board are made of high-quality galvanized or galvanized steel plates with a thickness of 0.4-0.8mm, which has beautiful anti-corrosion and anti-aging properties.

Production process:

After rolling the steel plate with a forming machine, the rock wool blocks are staggered and arranged with the fiber direction perpendicular to the upper and lower surfaces of the sandwich panel, and all vertical and horizontal surfaces of the core panel are firmly filled. Rock wool and polyurethane, as well as the upper and lower steel plates, are connected into a whole through high-strength foaming agents. The advanced production process ensures a strong bonding force between the high-density insulation material and the inner wall of the metal plate, giving the rock wool sandwich panel good rigidity.

polyurethane edge-sealed rock wool sandwich panel

Finished product:

Polyurethane edge-sealed rock wool sandwich panel is a composite panel with galvanized color steel plates on both sides, structural rock wool in the middle, and 50mm wide polyurethane insulation material at both ends.

Characteristics of polyurethane edge-sealed rock wool sandwich panel:

  • Sealing performance: Polyurethane edge sealing rock wool board adopts assembly line production process, using the excellent water resistance of polyurethane products to overcome the shortcomings of asbestos, that is, easy to absorb water and moisture, and effectively extend the service life of the product based on physical properties.
  • Aesthetic performance: The interface is round and smooth, smooth and beautiful, the joints are tight, and the strength is reliable, effectively preventing the occurrence of hot and cold bridges.
  • Good rigidity: A polyurethane edge-sealed rock wool core is bonded to two layers of steel plates to form a unit that works together.

In addition, the upper surface of the roof panel is corrugated and compressed, and its overall stiffness is much better than the rock wool sandwiched in the in-situ compression panel (glass wool) composite panel. After the sandwich panels are fixed with splints through connectors, the overall stiffness of the roof is greatly improved, and the overall working performance of the roof is enhanced. Choosing rock wool sandwich panels allows for a larger distance between belts, thus saving 1/3 to 2/3 of the number of belts.