The main raw material of rock wool sandwich panel,basalt wool, is a natural ore made by melting at high temperature and does not contain harmful substances such as formaldehyde and benzene. In the production and use process will not produce harmful substances to the environment and human body.
- Excellent thermal insulation properties
- Good chemical stability
- Green energy saving and environmental protection
Rock wool, the core material of sandwich panels, is made from natural basalt melted at high temperature. It features Class A fireproof performance, excellent thermal insulation and sound absorption. Non-toxic, formaldehyde-free, and environmentally friendly, it is stable, corrosion-resistant and long-lasting. It is an ideal core material for high-safety building walls and roofs.

| Material | Rock Wool Board | |
| Density | 80kg/m³,100kg/m³,120kg/m³,150kg/m³ | |
| Thickness | 50mm,75mm,100mm,125mm,150mm | |
| Working Temperature | Up to 750℃ | ASTM C411/C447 |
| Reaction to Fire | Euro Class A1 | EN 13501-1 |
| Surface burning characteristics:Flame spread=passed | ASTM E84 | |
| Smoke development=passed | ||
| Compression Strength | 105 Kpa(Compressive strength at 10% deformation) | ASTM C165-07- |
| Linear Shrinkage | Less than 2%(at m ax service temperature) | ASTM C356 |
| Incombustibility | <5 wt% | IS 3144 |
| PH | 7-10 | IS 3144 |
| Corrosion Effect | Ph7 or slightly A lkaline | ASTM C692-77 |
| Compression resistance | >10kn/㎡ | ASTM C165-07 |
| Water absorption | Less than 1 kg/㎡ | EN 1609 |
| Moisture absorption | Less than 1 % weight | ASTM C1104/C1104M |
| Fungi Growth | Does not encourage fungi growth | ASTM C665 |
Sound Absorption & Noise Reduction:Porous core materials like glass wool effectively absorb sound waves, minimize noise transfer, and create a quieter indoor acoustic environment for buildings including schools, hospitals and other public facilities.


Tianjin Iking Gerui Business Co., Ltd. specializes in insulation and acoustic solutions, offering rock wool, glass wool, and PU sandwich panels. With over 25 years of experience, we serve 100+ countries, ensuring compliance with international standards. Our advanced production lines guarantee high precision and flatness, while certifications confirm fire resistance and structural safety. We provide 24/7 support, OEM services, and fast delivery, reinforcing our reputation as a trusted global partner.

Q1:What are the main advantages of rock wool panels?
A:They offer superior fire resistance, sound insulation, and thermal performance, especially for high-safety industrial and commercial projects.
Q2:What is the thermal performance of PU sandwich panels?
A:PU panels have very low thermal conductivity , providing excellent insulation efficiency, especially for cold storage.
Q3:Are PU sandwich panels suitable for cold rooms?
A:Yes, they are widely used in cold storage, freezer rooms, and food processing facilities due to their high insulation and airtightness.
Q4:Are PU panels fire-resistant?
A:PU panels can achieve improved fire performance (B1/B2 grade or PIR option), depending on the core material and formulation.