Rock Wool Sandwich Panel — China Fireproof Panel Supplier
Rock Wool Sandwich Panel — Non-Combustible Mineral Wool Core Insulation
Mineral rock wool core sandwiched between metal face sheets — the ultimate fire-resistant insulation panel. Non-combustible Euroclass A1/A2, excellent acoustic performance, and superior thermal insulation for safety-critical buildings. Professional rock wool sandwich panel supplier China.
What Are Rock Wool Sandwich Panels? — Fireproof Mineral Wool Insulation
Mineral Fiber Core • Steel Face • Non-Combustible
Rock wool sandwich panels consist of a high-density mineral wool core bonded between two layers of color coated steel sheets. The rock wool is manufactured from natural basalt rock and slag, melted at over 1,400°C, then spun into fibers and compressed into a rigid board with excellent fire resistance and acoustic properties.
They are the preferred choice for buildings with stringent fire safety requirements — including high-rise buildings, hospitals, schools, airports, and industrial facilities where non-combustible insulation is mandatory by building codes.
Standards: GB/T 23932 / EN 14509 / AS/NZS 2728 / ASTM E72 / BS 476.
Non-Combustible Fire Protection
Euroclass A1/A2 — completely non-combustible. Withstands up to 1,000°C. No toxic smoke.
Excellent Acoustic Performance
Dense fiber absorbs sound effectively. Sound reduction up to 45dB — ideal for noise-sensitive areas.
Good Thermal Insulation
λ = 0.040–0.050 W/m·K. Effective energy saving for both heating and cooling.
Breathable & Moisture Resistant
Mineral fibers allow vapor diffusion, preventing condensation inside the wall assembly.
Fast Installation
Pre-engineered panels with concealed or exposed fastening. Clean, dry construction process.
Environmentally Friendly
Made from natural basalt rock. No CFC, HCFC, or formaldehyde. Fully recyclable.
Panel Structure — Rock Wool Core Laminated Between Steel Face Sheets
Rock Wool Core Laminated Between Steel Face Sheets
Roof Shape
Wall Shape
Total steel sheet (0.40–0.80 mm PPGI/PPGL) + Rock Wool Core (80–150 kg/m³ density) + Total steel sheet (0.40–0.80 mm PPGI/PPGL)
Technical Specifications — Rock Wool Sandwich Panel Parameters
Rock Wool Sandwich Panel Parameters
| Parameter | Value / Option |
|---|---|
| Face Material | Color Coated Steel (PPGI / PPGL), Thickness: 0.40 – 0.80 mm |
| Core Material | Rock Wool (Mineral Wool), Density: 80 – 150 kg/m³ |
| Panel Thickness | 50 / 60 / 75 / 80 / 100 / 120 / 150 / 200 mm |
| Effective Width | 950 / 1000 / 1150 mm |
| Panel Length | Custom cut, up to 12,000 mm |
| Thermal Conductivity | λ = 0.040 – 0.050 W/m·K |
| Fire Rating | Euroclass A1 / A2-s1,d0 — Non-combustible |
| Fire Resistance (Structural) | Up to 120 minutes (depending on thickness & assembly) |
| Acoustic Performance | Sound reduction Rw = 30 – 45 dB |
| Panel Weight | Approx. 15 – 30 kg/m² (depending on thickness & density) |
| Max Service Temperature | Up to 1,000°C (rock wool fiber melting point) |
| Surface Profile | Flat / Micro-ribbed / Trapezoidal / Corrugated |
| Joint Type | Shiplap / Tongue & Groove / Overlap |
| Color | RAL Colors / Customized |
Mill test certificates (MTC) provided. Third-party inspection (SGS / BV) welcome.
Applications — Rock Wool Sandwich Panels for Fire-Safe Buildings
Fire-Safe Insulation for Critical Buildings
High-Rise Buildings
Fire-safe cladding for multi-story structures
Hospitals & Healthcare
Patient rooms, operating theaters, clean zones
Schools & Public Buildings
Classrooms, auditoriums, assembly halls
Airports & Transit Hubs
Terminals, waiting areas, concourses
Industrial Fire Walls
Fire separation, plant enclosures
Warehouses & Logistics
Distribution centers, storage facilities
Auditoriums & Theaters
Acoustic ceilings, partition walls
Power Plants & Substations
Turbine halls, transformer enclosures
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