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Rock Wool Board
- Density: 60-150 kg/m³
- Raw materials: Basalt
- Asbestos: 100% Non Asbestos
- Size: Customized size
Function: Fire protection, Thermal insulation, Sound absorption - Certification: ISO9001/ISO14001/ISO45001/ISO50001
- Samples: Provide you free samples for testing
Custom high quality Rockwool Blanket/Felt
Henan Jianhong Refractory—Trusted Global Partner for Rockwool Blanket Insulation
Why choose Jianhong Refractory?
If you’re in search of the finest Rockwool Blanket/Felt for optimal solutions to serve your clients, look no further than Jian Hong Refractory. Our meticulous practices ensure the delivery of top-tier Rockwool Blanket/Felt.
Low MOQ
Jian Hong Refractory offers flexible production, accommodating orders from 1 to 10,0000 units on demand.
Fast delivery
Our mature production line facilitates 24/7 operations, enabling rapid turnaround and prompt delivery.
Competitive Price
We guarantee the most competitive prices while maintaining the highest quality standards compared to other suppliers.
Expert Production
Equipped with three modern production lines, our facilities ensure consistent quality and timely delivery, setting us apart from others in the industry.
Satisfaction Assurance
With a focus on refractory product quality and clear communication, we ensure that every step is streamlined for the ease and satisfaction of our clients.
Comprehensive Product Range
Beyond high alumina bricks, our portfolio includes castables, insulation bricks, ceramic fiber products, and refractory raw materials, providing a one-stop solution unlike competitors with limited ranges.
1 Refractory Raw Materials
2 Crushing and Grinding
3 Screening and Mixing
4 Formulation and Batching
5 Molding and Shaping
6 Drying
7 Pre-Firing Inspection
8 Firing in Kiln
9 Firing Completed
10 Final Quality Inspection
11 Packaging
12 Transport and Delivery
The Ultimate Buyer’s Guide: How to Purchase Rock Wool Board
Are you in the market for Rock Wool Board ? Look no further.
This all-inclusive buyer’s guide provides you with crucial insights into Rock Wool Board, which find applications in commercial residential industry, Houses and buildings industry, marine industry, chemical industry and other insulation, fireproofing, sound control industries. Whether you’re contemplating importing them for your projects or planning local distribution, this guide furnishes invaluable information to guide your decision-making process.
Chapter 1
What is Rock Wool Board?
Energy-Saving Mineral Wool Insulation for Industrial and Building Applications
Rock Wool Board is a high-performance insulation material made from molten basalt and natural rock, fused at high temperatures to form resilient fibers, ideal for fireproofing and thermal regulation in construction. External wall insulation rock wool board is mainly used in external wall insulation thin plaster system and dry hanging curtain wall insulation system. It has good compressive and tensile strength, excellent water repellency and moisture resistance, and is suitable for various masonry or concrete and other dense structure base walls. It can be used for external insulation of new and expanded walls, and can also be used for energy-saving renovation of external wall insulation of existing buildings.
Chapter 2
Features of Rock Wool Board
Reliable, Durable, and Sustainable for Demanding Insulation Environments
- Superior Fire Resistance:
A1-class non-combustible, withstands 1000°C+ heat, blocking fire spread effectively. - Excellent Thermal Insulation:
Low thermal conductivity (≤0.044 W/(m·K)) reduces energy loss in buildings. - Strong Sound Absorption:
Dense fiber structure dampens airborne and impact noise, enhancing indoor quietness. - Moisture Resistance:
Repels water vapor, maintaining insulation performance in humid environments. - High Durability:
Resists corrosion and deformation, lasting 50+ years in typical conditions. - Eco-Friendly:
Recyclable, free of harmful chemicals, meeting global green building standards.
Chapter 3
Specifications of Our Rock Wool Board
| Performance of products | TPB75 | TPB100 | TPB150 | Unit |
|---|---|---|---|---|
| Compressive strength (10% deformation) | ≥40 | ≥50 | ≥60 | kPa |
| Tensile strength (perpendicular to surface) | ≥7.5 | ≥10 | ≥15 | kPa |
| Thermal conductivity (25℃) | ≤0.039 | ≤0.039 | ≤0.039 | W/(m·K) |
| Combustion performance | Class A | Class A | Class A | —— |
| Acidity coefficient | ≥1.8 | ≥1.8 | ≥1.8 | —— |
| Hydrophobicity | ≥99 | ≥99 | ≥99 | % |
| Specific absorption of quality | ≤1.0 | ≤1.0 | ≤1.0 | % |
| Short-term water absorption (partial immersion, 24h) | ≤0.5 | ≤0.5 | ≤0.5 | Kg/m² |
| Long-term water absorption (partial immersion, 28d) | ≤2.0 | ≤2.0 | ≤2.0 | Kg/m² |
| Noise reduction coefficient (NRC) | ≥0.6 | ≥0.6 | ≥0.6 | --- |
| Dimensional stability | ≤1.0 | ≤1.0 | ≤1.0 | % |
| Melting temperature | ≥1000 | ≥1000 | ≥1000 | ℃ |
| Thickness deviation | ±3 | ±3 | ±3 | mm |
| Squareness | ≤5 | ≤5 | ≤5 | mm/m |
| Roughness | ≤5 | ≤5 | ≤5 | mm |
Chapter 4
Application of Rock Wool Board
Versatile uses across industries for insulation, fireproofing, and sound control.
1. Thermal Insulation for Industrial Ducts
- Isolating heating ducts in steel plants to retain high temperatures and reduce heat loss by over 30%.
- Lining exhaust flues in metallurgical facilities for improved energy efficiency and worker safety.
2. Acoustic Panels in Commercial Buildings
- Installed in office ceiling panels to reduce echo and improve speech clarity in meeting rooms.
- Used in warehouse walls near heavy machinery, cutting noise transmission by 15–20dB.
3. Fire-Proofing Partition Walls
- Deployed in hotel corridors to enhance fire separation between rooms and evacuation routes.
- Used in school and hospital partitions to meet fire safety codes and protect occupants.
4. External Wall Cladding Insulation
- Applied behind ventilated facades in cold climates to maintain indoor temperature and reduce fuel costs.
- Installed around kilns and industrial ovens to reduce external surface heat and protect building structures.
Chapter 5
Quality Assurance for Rock Wool Board
Henan Jianhong Refractory strictly adheres to ISO 9001 quality standards, utilizing advanced testing equipment for comprehensive inspections. Every batch of our Rock Wool Board undergoes rigorous testing, ensuring it meets global quality benchmarks and your exacting requirements for reliability, durability, and performance.
The key quality tests typically include:
| Inspection Category | Inspection Item | Inspection Content | Inspection Method |
|---|---|---|---|
| Basic Appearance | Surface Quality | Check for cracks, holes, obvious stains, agglomeration, or exposed fibers; ensure the surface is flat. | Visual inspection (under natural light or standard light source). |
| Edge & Corner Condition | Check for edge breakage, corner damage, or irregular cutting; ensure edges are neat. | Visual inspection and ruler measurement. | |
| Dimensional Accuracy | Length/Width | Measure actual length and width, check if they meet the specified tolerance range (usually ±5mm for common specifications). | Use a steel tape measure (accuracy ≥1mm) to measure at 3 different positions and take the average. |
| Thickness | Measure thickness at multiple points (≥5 points evenly distributed), check if it meets the tolerance requirement (usually ±5% of the nominal thickness). | Use a thickness gauge (with a pressure of 2kPa±0.5kPa). | |
| Physical Performance | Bulk Density (Density) | Measure the mass per unit volume, check if it is within the specified range (e.g., 48-120 kg/m³ for common products). | Cut a sample of regular shape, weigh it with a balance (accuracy ≥0.1g), and calculate volume. |
| Thermal Conductivity | Test the heat transfer performance at 25℃ (average temperature), ensure it meets the standard (e.g., ≤0.044 W/(m·K) for products with density ≥80 kg/m³). | Use a heat flow meter or guarded hot plate method. | |
| Compressive Strength | Test the maximum pressure the product can bear without excessive deformation (compression deformation ≤10%), meet the specified value (e.g., ≥40 kPa). | Use a universal testing machine, apply pressure at a speed of 10mm/min. | |
| Tensile Strength (Vertical & Horizontal) | Test the resistance to pulling force, ensure it meets the requirement (e.g., ≥7.5 kPa for vertical tensile strength). | Use a tensile testing device with a constant speed of 50mm/min. | |
| Water Absorption (Volume Ratio) | Test the volume percentage of absorbed water after immersion, meet the standard (e.g., ≤5% for water-repellent products). | Immerse the sample in water for 24h, calculate the volume of absorbed water. | |
| Slag Ball Content | Test the mass percentage of slag balls (diameter >0.25mm), meet the requirement (e.g., ≤10% for high-quality products). | Sieve the sample, weigh the slag balls retained on the sieve. | |
| Combustion Performance | Combustion Grade | Verify the combustion performance grade (e.g., A1 or A2 grade，non-combustible), check for flame spread, smoke production, or dripping. | Use a cone calorimeter or vertical burning test device. |
| Hot Load Shrinkage Temperature | Test the temperature at which the product shrinks by 4% under heat load, meet the standard (e.g., ≥600℃). | Heat the sample at a rate of 5℃/min, monitor shrinkage with a displacement sensor. | |
| Chemical Performance | pH Value | Test the acidity/alkalinity, ensure it is within the range (e.g., 7-9 for neutral products). | Use a pH meter to test the extract solution of the sample. |
| Chloride Ion Content | Test the mass percentage of chloride ions, meet the limit (e.g., ≤0.03%). | Use ion chromatography to analyze the extract solution. | |
| Average Fiber Diameter | Test the average diameter of rock wool fibers, meet the requirement (e.g., ≤7μm). | Use a microscope to measure fiber diameters (≥100 fibers), calculate the average. | |
| Safety & Environmental Protection | Formaldehyde Emission | Test the release amount of formaldehyde, meet the limit (e.g., ≤0.1mg/m³). | Use the environmental test chamber method. |
| Radionuclide Limit | Test the specific activity of radionuclides (Ra-226, Th-232, K-40), meet the A Category Requirements (radioactivity index Iγ≤1.0). | Use a gamma spectrometer to measure the radionuclide content. | |
| Packaging & Labeling | Packaging Integrity | Check if the packaging is intact, moisture-proof, and anti-collision; ensure no damage during transportation. | Visual inspection, check for tears, water stains, or looseness. |
Through this meticulous testing process, we ensure that our Rock Wool Board products meet the highest standards of quality, reliability, and performance, making them ideal for various applications in various industries.
Chapter 6
Chapter 7
In Summary
Rock Wool Board is a top-tier insulation material—featuring fire resistance, thermal efficiency, acoustic benefits, moisture resistance, and sustainability. With customizable sizes and consistent quality, it supports your projects’ safety and performance goals.
Henan Jianhong Refractory Materials Co., Ltd. (est. 2002) specializes in producing premium Rock Wool Board in bulk. Located in Zhengzhou, we operate three advanced production lines and serve North American and European markets. We offer OEM/ODM, competitive factory pricing, timely delivery, and unmatched customization — empowering partners like you to meet tough industry standards and optimize ROI.
Ready to elevate your operations?
Contact Henan Jianhong Refractory Materials today—let us be your reliable source for durable, high-performance refractory solutions.
