Heat Insulation Fireproof Rock Wool Board
Product Overview
Heat insulation fireproof rock wool board offers excellent thermal insulation, sound absorption, fire resistance, and compression strength. It is widely used in modern industrial and civil construction as an energy-efficient insulation material.
This product is classified as Class A1 non-combustible, with low thermal conductivity, strong durability, and eco-friendly properties. It is especially suitable for external wall insulation systems, industrial equipment insulation, fire barriers, and heat loss control in high-temperature environments.
Core Performance Advantages
|
Performance characteristics |
Description |
|
Excellent fire resistance |
It is a Class A non-combustible material with a melting point of >1000°C and will not release toxic smoke in a fire. |
|
Thermal insulation and energy saving |
Low thermal conductivity (as low as 0.035 W/m·K), significantly reducing energy consumption and improving thermal efficiency |
|
Strong sound absorption and noise reduction |
The open fiber structure has excellent absorption effect on mid- and high-frequency sounds and is often used in sound insulation wall and ceiling systems. |
|
Strong weather resistance |
Non-hygroscopic, non-aging, resistant to temperature changes, resistant to freezing and thawing, and adaptable to various extreme climates |
|
Structural stability |
High compressive and tensile strength, long-term load-bearing without deformation, suitable for combination with various mechanical structures and insulation layers |
|
Green and environmentally friendly |
No asbestos, no formaldehyde, no VOC emissions, in compliance with EU RoHS and REACH environmental protection requirements |
Technical Parameters
|
Description |
High-quality rock wool board
|
|
Density (kg/m3) |
50-160 |
|
Melting point (℃) |
>1000 |
|
Compressive strength (MPa, relative strain 10) |
≥40 |
|
Tensile strength (kPa) |
≥80 |
|
Acidity coefficient |
≥1.8 |
|
Hydrophobicity (%) |
≥98 |
|
Moisture absorption (%) |
≤1.0 |
|
Water absorbency (kg/m2, partially submerged) |
Short term(24h)≤1.0 Long term(28d)≤3.0 |
|
Flammable |
Non-combustible A1 |
|
Constant linear shrinkage (%) |
750℃×0.5h≤8 |
|
Weight loss (%) |
750℃×0.5h≤10 |
|
Thermal conductivity (W/m=K, 25°C) |
≤0.04 |
|
Thickness tolerance (mm) |
±3 |
|
Flatness tolerance (mm) |
≤5 |
|
Standard size (mm) |
1200×600×(25-100) |
Production Process Overview
Raw Material Preparation: Natural basalt, dolomite, etc. are screened and crushed.
High-Temperature Melting: The raw materials are melted in a natural gas or coke high-temperature furnace (temperature > 1450°C).
Fiber Forming: Fibers are spun through a four-wheel centrifuge to form fibers, and a binder and hydrophobic agent are added.
Spreading and Forming: Fibers are automatically spread and pressed into shape in a settling chamber.
Curing and Drying: Fibers are fed into a curing oven to complete the binder reaction and stabilize the structure.
Cutting and Packaging: Cut to customer size, compressed and packaged, and shipped to warehouse.
Product Classification
|
ITEM |
Applicable Scenarios |
Features |
|
Ordinary rock wool board |
Thermal insulation of building roofs and walls |
High cost performance and strong versatility |
|
Hydrophobic rock wool board |
External Thermal Insulation Systems (ETICS) |
Waterproof and moisture-proof, suitable for exposed environments |
|
High-density rock wool board |
Curtain walls, roofs, high-rise buildings |
Strong pressure resistance, not easy to deform |
|
Fireproof and thermal insulation rock wool board |
Fire door core, pipe insulation, steel structure fire protection |
Good stability at high temperature for a long time |
|
Sound insulation rock wool board |
Concert halls, cinemas, soundproof walls |
High sound absorption coefficient and wide frequency response |
|
Multi-layer composite rock wool board |
Color steel sandwich panels, equipment housing |
可与铝箔,玻纤布,镀锌板复合 |
Application Areas
High-quality rock wool boards, due to their comprehensive performance, are widely used in the following areas:
Building energy-saving insulation systems: External Thermal Insulation Systems (ETICS), curtain wall insulation, and roof insulation
Industrial equipment insulation: Boilers, hot air ducts, heating furnaces, and high-temperature equipment casings
Steel structure fire protection: Steel beam and column cladding to improve fire resistance
Transportation: Ship fire compartments, rail vehicle mezzanines, and engine room insulation
Sound insulation and noise reduction projects: Power plant engine rooms, air conditioning ducts, cinemas, and recording studio walls
Fire protection systems: Fire door cores, fireproof sealing materials, and cable channel protective layers
Selection Recommendations
|
Usage Environment |
Recommended density (kg/m³) |
Recommended Type |
|
External wall insulation system |
100～120 |
Hydrophobic rock wool board |
|
Industrial equipment insulation |
100～150 |
High-density rock wool board |
|
Curtain wall/roof insulation |
120～150 |
High-strength waterproof rock wool board |
|
Fire door core |
≥150 |
Fireproof rock wool board |
|
Sound absorption and noise reduction system |
60～100 |
Sound-absorbing rock wool board |
Packaging & Transportation
(1)Packaging Methods:
PE shrink film compressed packaging (space-saving for shipping)
Palletized or ton bag options available
Custom printing and export-grade packaging solutions supported
(2)Transport & Storage Guidelines:
Keep dry, avoid compression, and protect from direct sunlight
Recommend storage in a dry, ventilated warehouse
Prolonged exposure to moisture may affect product performance
Typical Application Cases
✅ Case 1: High-Rise Building External Wall Insulation in Eastern China
Used hydrophobic rock wool boards with a density of 120 kg/m³, fixed with anchors and adhesive
Thermal conductivity measured at 0.038 W/m·K, improving building energy efficiency by 32%
The system passed the national Class A1 fire certification and has operated safely for 8 years with no water leakage or bulging
✅ Case 2: Insulation of Flue Ducts in a Large Thermal Power Plant
Applied high-temperature rock wool boards with a thickness of 80 mm and density of 160 kg/m³
Withstood operating temperatures up to 700°C while maintaining excellent insulation performance
Surface temperature of the flue ducts was controlled within 60°C after installation
FAQ
Q1: Will rock wool boards fail in humid environments?
A1: Hydrophobic rock wool boards have excellent water resistance. Short-term exposure to moisture does not affect performance, but we recommend adding an external protective layer for long-term use.
Q2: How can I confirm if the rock wool board is Class A non-combustible?
A2: All our products are certified as Class A1 fireproof according to national standards. We can provide type test reports and third-party certification documents.
Q3: Can you provide testing and certifications required for export?
A3: Yes. We offer EN-standard certifications, CE, RoHS, REACH, and SGS test reports, among others.
Q4: Can you customize special shapes or composite rock wool boards?
A4: Yes. We support non-standard size processing and laminating services (e.g., with aluminum foil, fiberglass cloth, or metal panels).
Q5: Does thermal conductivity change with density?
A5: Yes. Higher density may slightly increase thermal conductivity. We recommend balancing insulation needs with structural strength for optimal performance.
Services & Support
✅ Complimentary technical consultation and system selection guidance
✅ Sample testing and customized application solutions
✅ Full-process factory inspection with support for third-party acceptance
✅ Dedicated account manager and long-term supply assurance
✅ OEM/ODM services and export clearance documentation provided
As a high-performance inorganic insulation material, premium rock wool boards are widely used in green building, industrial energy efficiency, and fire safety applications. Known for their excellent thermal insulation, structural stability, and eco-friendly properties, they have become an essential component in a wide range of projects.
Contact us today to request technical brochures, sample applications, project-specific quotations, or partnership proposals. We are committed to delivering professional service and reliable quality, providing you with comprehensive and efficient rock wool system solutions.
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