Rockwool Insulation Blanket (Rock Wool Blanket)

Flexible rockwool insulation blanket (also rock wool blanket) for large area coverage, pipe and equipment thermal insulation.

Density: 60-150 kg/m3
Thickness: 25-100mm
Temperature: Up to 600C
Asbestos: 100% Non-Asbestos

Overview

✦ Flexible for curved surfaces
✦ Excellent thermal insulation
✦ Good sound absorption
✦ Class A non-combustible

Rockwool Insulation Blanket for Industrial Applications

Rockwool insulation blanket (also written rock wool blanket) is a flexible roll-form thermal and acoustic insulation product manufactured from high-quality basalt fibers. It is designed for large-area coverage on pipes, vessels, ducts, and equipment where rigid pre-formed sections are impractical. As a versatile rock wool blanket, it conforms to curved and irregular surfaces while delivering uniform thermal performance.

Our rockwool insulation blanket is engineered for temperatures up to 600C (standard grade) and 750C (high-temperature grade). With thermal conductivity of 0.034-0.040 W/(m.K) at 50C, Class A1 non-combustibility, and hydrophobic water repellency exceeding 98%, it is the preferred rock wool blanket solution for industrial, commercial, and HVAC applications.

Key Features of Rockwool Insulation Blanket

Flexible for curved surfaces - rolls easily wrap around pipes, elbows, and irregular equipment
Excellent thermal insulation - low thermal conductivity minimizes heat loss across operating range
Good sound absorption - reduces noise transmission in mechanical rooms and plant areas
Class A1 non-combustible - Euroclass A1 and ASTM E84 Class A fire rating, will not contribute to fire spread
Water repellent - hydrophobic treatment maintains thermal performance in humid environments
Asbestos-free - 100% non-asbestos, formaldehyde-free binder system

Rock Wool Blanket vs Rockwool Insulation Blanket

Both terms refer to the same basalt-fiber roll product. "Rock wool blanket" is the traditional two-word spelling, while "rockwool insulation blanket" emphasizes the insulation function and the single-word brand-style spelling. Either way, the material delivers identical performance: flexible, fire-resistant, and thermally efficient.

Typical Applications

Large diameter pipes - insulation of Process piping, steam lines, and chilled water mains
Industrial tanks and vessels - thermal and condensation control for storage and process equipment
HVAC duct insulation - acoustic and thermal treatment of air handling systems
Building envelope - roof, wall cavity, and facade insulation in commercial construction
Power plant equipment - boiler, turbine, and auxiliary system insulation
Marine and offshore - engine room and exhaust insulation

Material Comparison

Property	Rockwool Blanket	Glass Wool Blanket	Ceramic Fiber Blanket	Calcium Silicate
Max Temperature	600-750C	450C	1430C	1050C
Thermal Conductivity	0.034-0.040	0.030-0.036	0.080-0.120	0.045-0.055
Fire Rating	Class A1	Class A1	Class A1	Class A1
Flexibility	High	High	Medium	Rigid
Water Repellency	98%+	No	No	No
Density	60-150 kg/m3	10-96	96-160	170-240

Technical Specifications

Our rockwool insulation blanket is available in densities from 60 to 150 kg/m3, thicknesses from 25mm to 100mm, and roll widths from 600mm to 1200mm. Standard facings include plain, aluminum foil, wire mesh, and glass fiber mesh for mechanical protection and vapor barrier performance.

All products are manufactured under ISO 9001 quality management, with third-party certifications from SGS, Intertek, and TUV Rheinland. Products comply with ASTM C612, Euroclass A1, and REACH requirements.

Quality Assurance

ISO 9001 certified manufacturing (SGS #CN-QMS-2025-001)
ASTM C612 Type IIA-V compliant (Intertek tested)
Euroclass A1 fire classification (TUV Rheinland #CE-REF-2025-043)
REACH compliant (ECHA registered)
100% non-asbestos, formaldehyde-free binder

For project-specific technical data sheets, material safety data sheets, or custom roll dimensions, contact our engineering team for a tailored quote.

Part of the rock wool product family.

Key features

✓ Flexible for curved surfaces
✓ Excellent thermal insulation
✓ Good sound absorption
✓ Class A non-combustible
✓ Water repellent
✓ Asbestos-free

Typical applications

Large diameter pipes
Industrial tanks and vessels
HVAC duct insulation
Building envelope
Power plant equipment
Rockwool insulation blanket for large pipes

Technical specs

Density: 60-150 kg/m3
Thickness: 25-100mm
Temperature: Up to 600C
Asbestos: 100% Non-Asbestos
Thermal Conductivity: 0.034-0.040 W/(m.K) @50C
Roll Width: 600-1200mm
Surface Treatment: Plain / Aluminum foil / Wire mesh / Glass mesh

Last updated: August 14, 2026

Frequently asked

What temperature can rock wool insulation withstand? +

Rock wool insulation can withstand temperatures up to 750C for standard grades. It is classified as a non-combustible material (Euroclass A1, ASTM E84 Class A), making it ideal for structural fire protection, industrial pipe insulation, and building envelope applications.

Does rock wool absorb water? +

No. Our rock wool products feature hydrophobic treatment with water repellency exceeding 98%. Unlike some insulation materials, rock wool maintains its thermal performance even in high-humidity environments. This makes it particularly suitable for outdoor pipework and marine applications.

Is rock wool environmentally friendly? +

Yes. Rock wool is manufactured from volcanic basalt rock - an abundant natural resource. It contains up to 75% recycled content, is fully recyclable at end of life, and contributes to building energy efficiency by reducing heat loss. It is RoHS and REACH compliant.

What density of rock wool insulation should I use? +

The optimal density depends on your application: 60-80 kg/m3 for general thermal insulation of tanks and vessels, 80-120 kg/m3 for pipe insulation and HVAC ductwork, 100-150 kg/m3 for load-bearing or structural applications, and 150+ kg/m3 for high-compression industrial flooring and sandwich panels.

What is rockwool insulation blanket? +

Rockwool insulation blanket (also called rock wool blanket) is a flexible roll-form insulation product made from molten basalt rock spun into fibers. It is designed for wrapping pipes, vessels, ducts, and equipment where rigid pre-formed sections cannot fit. As a rockwool insulation blanket, it provides thermal insulation, fire protection, and sound absorption in one flexible layer. Standard grades withstand 600C, with high-temperature grades rated to 750C. It is available in densities from 60 to 150 kg/m3 with optional foil, wire mesh, or glass fiber mesh facing.

What is the difference between rock wool blanket and rockwool insulation blanket? +

There is no material difference - rock wool blanket and rockwool insulation blanket are two spellings for the same basalt-fiber roll insulation product. "Rock wool blanket" is the traditional two-word form, while "rockwool insulation blanket" uses the single-word brand-style spelling and highlights the insulation function. Both refer to the flexible, fire-resistant, thermally efficient roll product used for pipes, tanks, ducts, and building envelope insulation. Performance specifications (density 60-150 kg/m3, temperature up to 750C, Class A1 fire rating) are identical regardless of spelling.

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