Brief Description:Rock wool roll is high-performance flexible fibrous insulation for high-temperature industrial and heating pipelines. Made from high-purity basalt, it is A1 non-combustible with low thermal conductivity, hydrophobic, sound absorbing and corrosion resistant. Ideal for municipal heating, power, chemical and boiler insulation. Custom size & density, free samples, direct manufacturer supply.

Haochen Rock Wool Roll, also known as rock wool thermal insulation blanket, is a high-performance flexible fibrous primary insulation material for thermal insulation works on industrial high-temperature pipe networks and heating pipework. As an original manufacturer, Haochen Insulation has many years of expertise in the R&D and manufacture of insulation materials. We select high-purity basalt mineral feedstock, and produce flexible rolled rock wool products via precision processes including melting at 1450°C, high-speed centrifugal fibre spinning, curing and forming. The material features fine, pliable fibres and an extremely low shot content with uniform, stable overall structure. It can closely conform to all types of pipework and irregular components to deliver fully seamless cladding, eliminating thermal bridges and heat dissipation gaps. Widely adopted for engineering applications such as municipal heating, power station heat supply, chemical processes, boiler plant and on-site thermal pipe networks. It integrates Class A1 fire resistance, high-efficiency thermal insulation, acoustic absorption and noise reduction, moisture resistance and corrosion protection. It delivers reliable long-term performance across diverse high and low temperature complex industrial operating conditions.

1. Core Performance Characteristics 1.1 Class A1 Non-combustible, Safe for High-temperature Service The product achieves Class A1 non-combustible classification with excellent fire resistance. Its maximum continuous operating temperature reaches 650°C. It will not ignite or propagate flame under direct fire exposure; there is no molten slag dripping and no release of toxic flue gases. It fully meets fire acceptance criteria for industrial buildings, thermal pipe networks and boiler systems, greatly enhancing operational safety for high-temperature pipework.

1.2 Flexible for Full Conformal Wrapping, High Installation Efficiency Unlike rigid insulation slabs, rock wool roll is pliable and freely bendable, rollable and wrappable. It conforms fully to round pipework of all diameters, bends, tees, valves, flanges and other irregular fittings. Roll installation is straightforward with minimal joints and superior sealing performance, effectively shortening construction periods and cutting on-site labour costs.

1.3 Ultra-low Thermal Conductivity, Sustainable Energy Saving Interlaced internal fibres create a dense porous heat-locking structure which traps stationary air. Its ultra-low thermal conductivity efficiently blocks outward heat loss from pipework, substantially reducing heat wastage within steam and hot-water pipe networks and continuously lowering energy consumption for municipal and on-site thermal systems for durable energy-saving performance.

1.4 Hydrophobic, Moisture and Corrosion Resistant, Broad Operating Envelope The product undergoes integral hydrophobic enhancement during manufacture with excellent hydrophobic performance and low affinity for water vapour and rainwater. Even with long-term service in underground trenches, overhead exposed runs and humid corrosive environments, it will not suffer water absorption leading to caking, sagging or insulation failure. Chemically stable, it resists acid and alkali attack and will not damage metallic pipe substrates, granting an extended service life.

1.5 Acoustic Absorption & Vibration Damping, Improved On-site Working Environment The distinctive porous fibre structure effectively absorbs and attenuates vibration noise generated by fluid impact and airflow transmission within pipework. When installed in boiler houses, pump rooms and industrial pipe systems, it delivers combined thermal insulation, noise reduction and vibration damping to improve plant working conditions.

1.6 Green Inorganic Mineral Substrate, Stable and Safe Performance Manufactured primarily from natural basalt inorganic minerals and asbestos-free. Stringent process control maintains low VOC emissions. Odourless and non-polluting, it remains environmentally safe during installation and long-term service and complies with domestic building material environmental testing standards.

2. Product Options Standard Rock Wool Roll: Basic economical grade with good cost performance and stable structure. Mainly used for inner-layer insulation of indoor dry pipe networks and equipment. Thickness: 50mm / 60mm / 70mm / 80mm / 90mm / 100mm / 110mm / 120mm / 130mm / 150mm Standard Width: 600mm Standard Length: 3000mm

Roll lengths can be cut to project requirements. Thickness, density, facing type and construction structure can all be custom manufactured in accordance with construction drawings and site operating conditions.

4. Main Application Sectors Widely used for thermal insulation and noise reduction works on municipal central heating pipe networks, residential district heating pipelines, high-temperature transmission pipework for power plants, process pipelines in chemical plants, boiler bodies and associated tanks, kiln flues, chilled and hot water HVAC pipework, refinery transmission pipelines and thermal insulation for industrial plant equipment.

5. Manufacturer Strength & Advantages Langfang Haochen Insulation is located within the insulation industrial base of Dacheng, Langfang, Hebei Province. Equipped with a complete set of automated rock wool production lines, we carry out stable large-scale production of pipe-specific rock wool roll and maintain ample stock for rapid delivery across the Beijing-Tianjin-Hebei region.

Free samples are available for customer testing. Our specialist technical team provides one-stop services including material selection, scheme coordination and site quotation. We undertake bulk supply contracts for small, medium and large thermal insulation projects. Haochen has many years’ experience serving the insulation market with mature production technology, rigorous quality control, consistent product quality and comprehensive after-sales support to ensure smooth delivery of insulation projects.