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Rockwool Blanket/Felt
- 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 Rockwool Blanket/Felt
Are you in the market for Rockwool Blanket/Felt ? Look no further.
This all-inclusive buyer’s guide provides you with crucial insights into Rockwool Blanket/Felt, 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 Rockwool Blanket/Felt?
Energy-Saving Mineral Wool Insulation for Industrial and Building Applications
Rockwool Blanket/Felt features excellent elasticity, flexibility, as well as outstanding performance in fire resistance, sound absorption, and thermal insulation. It is mainly used for thermal insulation and noise reduction in external walls and roofs of steel structure workshops, while also enhancing fire resistance. Additionally, it can perfectly fit irregular equipment and large pipelines. With its long length, it can effectively reduce joints and minimize thermal bridges. This product can be produced into hydrophobic and low-chlorine types according to customer requirements. Moreover, materials such as aluminum foil, glass fiber felt, glass fiber cloth can be laminated on its surface, or galvanized wire mesh and stainless steel wire mesh can be sewn onto it.
Chapter 2
Features of Rockwool Blanket/Felt
Reliable, Durable, and Sustainable for Demanding Insulation Environments
- Superior Thermal Insulation
Reduces heat loss efficiently in high-temperature and low-temperature systems.
- Excellent Fire Resistance
Non-combustible and can withstand temperatures up to 750°C without melting or releasing toxic gases.
- Sound Absorption
Absorbs noise and vibration, ideal for acoustic insulation in buildings and factories.
- Dimensional Stability
Maintains shape and structure under mechanical stress and temperature changes.
- Water Repellency
Resistant to moisture absorption, preventing mold and microbial growth.
- Eco-Friendly Material
Made from natural rock, recyclable, and free from asbestos or harmful chemicals.
Chapter 3
Specifications of Our Rockwool Blanket/Felt
| Product Performance | F60K | F80K | F100K | Unit | Standard |
|---|---|---|---|---|---|
| Thermal Conductivity (at 70℃) | ≤ 0.040 | ≤ 0.038 | ≤ 0.038 | W/(m•K) | GB/T 10295 |
| ASTM C177 | |||||
| ASTM C518 | |||||
| Maximum Service Temperature | 450 | 650 | 650 | ℃ | ASTM C411 |
| Veneer material: 80 | |||||
| Hot Load Shrinkage Temperature | 400 | 600 | 650 | ℃ | GB/T 11835 |
| Linear Shrinkage | ≤ 2 | ≤ 2 | ≤ 2 | % | ASTM C356 |
| Volumetric Hygroscopicity | ≤ 0.02 | ≤ 0.02 | ≤ 0.02 | vol% | GB/T 5480.7 ASTM C1104M |
| Hydrophobicity Rate | ≥ 99 | ≥ 99 | ≥ 99 | % | GB/T 10299 |
| Chloride Ion Content | ≤ 10 | ≤ 10 | ≤ 10 | PPM | ASTM C871 |
| Combustion Performance | Non-combustion, grade A1 | -- | GB 8624 ASTM E136 ASTM E84 | ||
| Smoke level ≤ 50 | |||||
| Flame propagation ≤ 25 | |||||
| Organic Matter Content | ≤ 1.0 | ≤ 1.0 | ≤ 1.0 | % | GB/T 11835 |
| Environmentally Friendly | Asbestos-free, no CFCs, HCFCs, and HFCs free | -- | |||
| Corrosive | NonCorrosive | ASTM C665 | |||
Chapter 4
Application of Rockwool Blanket/Felt
Versatile uses across industries for insulation, fireproofing, and sound control.
1. Industrial Pipelines & Tanks
- Insulating steam pipelines in a chemical plant, reducing heat loss by 30% and lowering energy consumption for heating systems.
- Wrapping oil storage tanks in a refinery to maintain stable temperatures, preventing condensation and ensuring product quality.
2. Commercial & Residential Buildings
- Installing in exterior walls of a shopping mall to enhance thermal insulation, cutting HVAC costs by 25% year-round.
- Using in attic floors of a residential complex to block external noise, creating quieter living spaces for 500+ families.
3. HVAC & Ductwork
- Lining air conditioning ducts in an office tower to prevent heat gain, ensuring cool air reaches each floor efficiently.
- Insulating ventilation ducts in a hospital to reduce noise from air flow, maintain quiet environments in patient wards.
4. Marine & Automotive
- Applying to engine rooms of cargo ships to resist high temperatures, protecting electrical systems and equipment extending lifespan.
- Using in truck cabins to insulate against extreme weather, keeping drivers comfortable in both hot summers and cold winters.
Chapter 5
Quality Assurance for Rockwool Blanket/Felt
Henan Jianhong Refractory strictly adheres to ISO 9001 quality standards, utilizing advanced testing equipment for comprehensive inspections. Every batch of our Rockwool Blanket/Felt 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 Rockwool Blanket/Felt 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
Rockwool blanket offers fire resistance, thermal efficiency, sound absorption, and durability, with versatile applications in industry, construction, and more—backed by strict quality assurance.
We provide customizable Rockwool blankets, exporting to 30+ countries. With advanced production lines and responsive after-sales service, we meet your project’s unique insulation needs.
Ready to elevate your operations?
Contact Henan Jianhong Refractory Materials today—let us be your reliable source for durable, high-performance refractory solutions.
