1. Product Description
High-quality Mineral Wool Boards feature excellent thermal insulation, sound absorption, fire resistance, and mechanical strength. This energy-efficient insulation material is widely used in both industrial and civil construction.
The product is non-combustible (A1 class), has low thermal conductivity, high resistance to environmental impact, and is eco-friendly. It is especially recommended for facade insulation systems, industrial equipment thermal insulation, fireproof partitions, and heat loss control in high-temperature applications.
2. Key Advantages
| Feature | Description | |
| Excellent Fire Resistance | Non-combustible (Class A), melting point > 1000 °C, no toxic gas emission during fire. | |
| Efficient Thermal Insulation | Low thermal conductivity (up to 0.035 W/m·K), reducing energy loss and improving thermal efficiency. | |
| Superior Sound Absorption | Open fibrous structure effectively absorbs mid- and high-frequency sound, ideal for acoustic walls and suspended ceilings. | |
| Weather Resistance | Moisture-repellent, does not age, withstands temperature fluctuations and freeze-thaw cycles, suitable for harsh climates. | |
| Stable Mechanical Strength | High compressive and tensile strength, resistant to long-term loading, compatible with various insulation and construction systems. | |
| Eco-Friendly | Free of asbestos, formaldehyde, and VOCs, compliant with EU RoHS and REACH standards. | |
3. Technical Specifications
| Description | High-Quality Mineral Wool Board |
| Density (kg/m³) | 50–160 |
| Melting Temperature (℃) | >1000 |
| Compressive Strength (MPa, 10% deformation) | ≥40 |
| Tensile Strength (kPa) | ≥80 |
| Acidity Coefficient | ≥1.8 |
| Water Repellency (%) | ≥98 |
| Hygroscopicity (%) | ≤1.0 |
| Water Absorption (kg/m², partial immersion) | Short-term (24h) ≤1.0; Long-term (28 days) ≤3.0 |
| Combustibility | Non-combustible A1 |
| Linear Shrinkage (%) | 750℃ × 0.5h ≤8 |
| Mass Loss (%) | 750℃ × 0.5h ≤10 |
| Thermal Conductivity (W/m·K, 25℃) | ≤0.04 |
| Thickness Tolerance (mm) | ±3 |
| Flatness Tolerance (mm) | ≤5 |
| Standard Size (mm) | 1200 × 600 × (25–100) |
For other technical specifications, please contact our sales manager.
4. Production Process
Raw Material Preparation: Carefully selected basalt, dolomite, and other minerals are crushed and sieved.
High-Temperature Melting: Raw materials are melted in a furnace fueled by natural gas or coke at >1450 °C.
Fiber Formation: The molten material is spun into fibers using four-centrifuge equipment; binding agents and hydrophobic additives are added simultaneously.
Mat Formation: Fibers settle in the forming chamber, automatically arranged and pressed into mats.
Polymerization and Drying: Mats undergo thermal treatment in a curing furnace to stabilize their structure.
Cutting and Packaging: Finished boards are cut to specified dimensions, compressed, and packaged for storage and shipment.
5. Product Types
| Type | Application | Features |
| Standard Mineral Wool Board | Roofs, interior walls | Cost-effective, versatile |
| Water-Repellent Mineral Wool Board | External thermal insulation systems (ETICS) | Moisture-resistant, suitable for outdoor conditions |
| High-Density Mineral Wool Board | Curtain walls, roofs, high-rise buildings | High compressive strength, deformation-resistant |
| Fire-Resistant Insulation Board | Fire doors, pipe insulation, metal protection | Maintains stability under high temperature over time |
| Acoustic Mineral Wool Board | Concert halls, cinemas, soundproof walls | High sound absorption across a wide frequency range |
| Multi-Layer Composite Board | Sandwich panels, equipment casing | Can be laminated with aluminum foil, fiberglass, or galvanized sheets |
6. Applications
- Energy-Efficient Building Insulation: External wall insulation (ETICS), curtain wall insulation, roof insulation.
- Industrial Equipment Thermal Insulation: Boilers, hot air ducts, furnace casings, high-temperature equipment shells.
- Fire Protection for Steel Structures: Beam and column cladding to enhance fire resistance.
- Transportation: Fireproof compartments on ships, vehicle inter-wall insulation, engine compartment insulation.
- Acoustic and Noise Reduction: Power plant machinery halls, ventilation and air-conditioning ducts, cinema walls, recording studios.
- Fire Protection Systems: Fire door cores, fireproof plugs, protective layers in cable channels.
7. Recommended Selection
| Application | Recommended Density (kg/m³) | Recommended Product Type |
| External Wall Insulation | 100–120 | Water-Repellent Board |
| Industrial Equipment Insulation | 100–150 | High-Density Board |
| Facades and Roofs | 120–150 | High-Strength Water-Repellent Board |
| Fire Doors | ≥150 | Fire-Resistant Board |
| Acoustic & Noise Control | 60–100 | Acoustic Board |
8. Packaging & Transportation
Packaging:
- Compressed in PE shrink film (easy for transport)
- Palletized or big-bag packing available
- Custom printing and export packaging supported
Precautions:
- Protect from moisture, pressure, and direct sunlight
- Store in dry, ventilated areas to avoid long-term moisture damage
9. Typical Applications
Example 1: High-Rise Building Exterior Wall Insulation, East China
- Water-repellent boards, density 120 kg/m³, double fixation (anchors + adhesive)
- Thermal conductivity: 0.038 W/m·K, improving energy efficiency by 32%
- Certified A1 fire safety, in service for 8 years without leakage or blistering
Example 2: Thermal Insulation of a Power Plant Chimney
- High-temperature boards, 80 mm thick, density 160 kg/m³
- Operating temperature: 700 °C, excellent insulation
- Surface temperature after installation: ≤60 °C
10. FAQ
Q1: Does mineral wool lose its properties in humid environments?
A1: Hydrophobic mineral wool boards have excellent water repellency. Short-term moisture exposure does not affect performance, but external protective cladding is recommended.
Q2: How to verify A1 non-combustibility?
A2: All our products are A1 certified. We provide test reports and certificates from independent accredited laboratories.
Q3: Do you provide certificates for export?
A3: Yes, we provide EN, CE, RoHS, REACH, SGS reports, and other certifications as required.
Q4: Can boards be made in custom sizes or with facing?
A4: Yes, we offer custom dimensions and facings, including aluminum foil, fiberglass, and metal sheets.
Q5: Does thermal conductivity vary with density?
A5: Yes, higher density slightly increases thermal conductivity. Choose based on a balance of insulation and structural strength.
11. Service & Support
- Free technical consultation and system selection guidance
- Sample provision and custom solutions
- Full quality inspection before shipment, third-party inspection supported
- Dedicated account manager and guaranteed inventory
- OEM/ODM services, export documentation, and customs clearance
Premium mineral wool boards are highly efficient inorganic insulation materials for green building, industrial energy savings, and fire protection. Their excellent thermal performance, stable form, and eco-safety make them indispensable for modern construction projects.
Contact us for technical documentation, samples, custom cost calculation, and partnership proposals. We provide professional, reliable, and complete solutions.
