Color Coated Metal Rock Wool Sandwich Panel

1 Product Parameters

2 Product Features

Excellent fire resistance. Rock wool is an inorganic material and its fire rating can reach A-level (non-combustible), far exceeding that of most organic core materials. It is suitable for scenarios with strict fire safety requirements such as hospitals, schools, and high-rise buildings, effectively preventing the spread of fire and enhancing the safety coefficient of the building.

Combines sound insulation and heat preservation. The rock wool fibers have a porous structure, with an air sound insulation value of over 40dB, which can block external noise; the thermal conductivity is approximately 0.044W/(m·K), and its insulation effect is close to EPS. It reduces heating energy consumption in winter and blocks high temperatures in summer, meeting the comfort requirements of both residential and industrial scenarios.

Strong anti-aging and weather resistance. Rock wool has high chemical stability, is resistant to acids and alkalis, and is resistant to moisture. It is unlikely to mold or deform over a long period of use. The outer colored steel plate is treated for corrosion resistance, and its outdoor service life can reach over 15 years. The cement mortar surface layer is resistant to ultraviolet rays and can withstand rain erosion. There is no need for frequent maintenance in the future, reducing maintenance costs.

Convenient construction and wide adaptability. Most of them are factory-premade standardized components. The side is equipped with a splicing structure. No complex procedures are required on-site. A 2-3 person team can complete the installation in a short time. The weight is moderate, no large lifting equipment is needed, and it is suitable for various buildings such as factories, warehouses, and residences. It is especially suitable for scenarios with dual requirements for fire resistance and sound insulation.

Allowable vertical load and heat transfer coefficient of PROPANEL new model fireproof rock wool wall sandwich panel with pu sealing (allowable deflection f ≤ L/240)

Note:0.5mm outer steel sheet and 0.4mm inner steel sheet.

3  Production Procedure of Rock Wool Sandwich Wall Panel 

The Rock Wool Sandwich Wall Panel is crafted through a precise production process, delivering exceptional product features like fire resistance, thermal insulation, and durability. Starting with stainless steel coils and color-coated galvanized coils as upper and lower substrates, the panels gain corrosion resistance and a sleek finish. These coils are decoiled efficiently, followed by film application to protect the steel sheets from scratches. The sheets are then corrugated for enhanced strength and load-bearing capacity, making them ideal for structural use.

Next, the steel sheets are preheated to ensure strong adhesion, while rock wool strips—the core material—are prepared for their superior fireproofing, insulation, and soundproofing properties. The rock wool is cross-butted to form a seamless core, maximizing thermal efficiency. A spraying section enhances surface durability, followed by an optional polyurethane side sealing for airtightness and moisture resistance, or no sealing based on project needs.

The panels undergo double-crawler curing, ensuring a robust bond between layers with even heat and pressure. They are then cut into pieces with precision for perfect sizing, stacked carefully to avoid damage, and automatically packaged for secure shipping. This process creates a high-performance panel suited for industrial, commercial, and residential applications, offering energy efficiency, safety, and longevity in a single solution.

4 Project cases of Rock Wool Sandwich Wall Panel

Project cases of Rock wool Wall Sandwich Panel--6000 square meters of BD project in the United States in 2018

Project cases of Rock wool Wall Sandwich Panel--Indonesian electronics factory in 2005 9000 square meters

5 Propanel's Honors and Certification

Propanel's rock wool sandwich panel has successfully obtained international authoritative certifications such as CE, FM, and UL with its excellent quality. Certified by CE, it complies with the safety, health, and environmental protection standards of the European Union and can freely circulate in the European market. FM certification indicates outstanding performance in fire resistance and wind resistance, and can effectively cope with challenges in various industrial and commercial environments. UL certification further confirms that the product meets the standards in electrical safety, fire resistance, and material stability, meeting stringent requirements. These certifications are a testament to strength, highlighting the reliability and high quality of rock wool sandwich panels on a global scale. Whether in the field of building insulation or fire safety, it can provide customers with reliable protection.