Rock Wool
rock Wool Acoustic Panels
High-density rock wool acoustic panels for superior sound absorption and thermal insulation in buildings.
Rock Wool
rock Wool Strips
Narrow rock wool insulation strips for thermal insulation in specific gap-filling and joint applications.
- Density
- 60-150 kg/m³
- Thickness
- 25-150mm
- Asbestos
- 100% Non-Asbestos
Overview
- ✦ Precise dimensional cutting
- ✦ Easy to handle
- ✦ Excellent thermal performance
- ✦ Class A non-combustible
Precisely cut narrow sections of rock wool board maintaining all thermal and fire performance characteristics while providing dimensional precision for targeted insulation applications.
What Is Rock Wool Strips?
Rock wool strips are precision-cut narrow sections of rock wool board that retain the full thermal, acoustic and fire performance of the parent board while offering tight dimensional control for targeted gap-filling, joint insulation and narrow-cavity work.
Key Technical Specifications
| Property | Value |
|---|---|
| Maximum service temperature | up to 650°C (continuous) |
| Density | 80–160 kg/m³ |
| Thermal conductivity | 0.034–0.040 W/(m·K) at 25°C mean (rises to ~0.07–0.09 W/(m·K) at 300°C) |
| Standard thickness | 20–100 mm (strip width 20–200 mm) |
| Standard dimensions | cut from 600×1200 mm or 1000×1200 mm board |
| Fire classification | A1 (non-combustible, EN 13501-1 / Euroclass A1) |
| Composition | basaltic rock melted above 1500°C and spun into mineral fibres; organic binder 2–5% by weight |
| Standards | EN 13162, ASTM C612 (Type IV, up to 650°C) |
Properties & Advantages
- Stable thermal conductivity and A1 non-combustibility in a slender profile
- Dimensional precision for clean joints and tight gaps
- Vapour-open (μ ≈ 1) — lets the assembly dry
- Hydrophobic treatment limits water uptake on site
- Acoustic absorption in resonant or narrow cavities
Typical Applications
- Expansion-joint and curtain-wall gap filling
- Pipe-support and hanger insulation
- Narrow wall/stud cavities and door cores
- Perimeter and junction detailing in façade systems
Installation & Handling
Cut to the required width with a sharp insulation knife and friction-fit or adhere into the gap. Butt joints tightly; stagger layers where multiple passes are specified.
Standards & Compliance
Manufactured to EN 13162, ASTM C612 (Type IV, up to 650°C) and controlled under a documented quality system. Supplied by a manufacturer holding ISO 9001, CE and SGS certifications, exporting high-temperature insulation to 60+ countries since 1982.
Why Specify This Product
Combines stable high-temperature performance with straightforward on-site fabrication. The material is asbestos-free, chemically stable in neutral and oxidising atmospheres, and supplied with full technical data sheets to support specification and inspection. Supplied by a manufacturer holding ISO 9001, CE and SGS certifications, exporting high-temperature insulation to 60+ countries since 1982.
Manufacturer & Supplier
Rosetexwool is a rock wool strips manufacturer and supplier serving more than 60 countries since 1982. Every rock wool strips is produced under a documented quality system certified to ISO 9001, CE and SGS, with batch-level traceability from raw material to finished product.
What our manufacturing capability covers:
- In-house melting, fibre-forming and finishing lines for consistent grade and density
- Dimensional, density and thermal checks against EN 13162, ASTM C612
- Asbestos-free, low-impurity formulations verified by incoming and outgoing inspection
- Standard and custom sizes, OEM/ODM grades, and cut-to-size supply for project quantities
For quotations, lead times or technical data sheets, contact our team with your specification and target service temperature. Explore the Rock Wool insulation hub for the full range, or read the rock wool insulation selection guide for selection support.
Related Rockwool Products & Alternatives
stone wool insulation board — High compressive strength means it takes render and mechanical fixings without crushing, unlike lighter blanket products.
rockwool pipe insulation — Pre-formed stone wool pipe sections for continuous service to 650 °C, factory-cut to standard diameters so coverage stays uniform.
glass wool board — Semi-rigid board for building envelopes, HVAC casings and acoustic panels, light enough to handle in large sheets and easy to cut on site.
For the full stone wool range, temperature limits and density options, see our rockwool insulation guide.
For adjacent material options across temperature and application ranges, explore our ceramic fiber insulation hub.
Part of the Rock Wool product family.
Key features
- ✓ Precise dimensional cutting
- ✓ Easy to handle
- ✓ Excellent thermal performance
- ✓ Class A non-combustible
- ✓ Good acoustic performance
- ✓ Asbestos-free
Typical applications
- Joint and gap insulation
- Frame and stud cavity filling
- Perimeter fire barriers
- Custom insulation applications
Technical specs
- Density
- 60-150 kg/m³
- Thickness
- 25-150mm
- Asbestos
- 100% Non-Asbestos
Last updated: September 19, 2026
Frequently asked
What temperature can rock wool insulation withstand? +
Rock wool insulation can withstand temperatures up to 650 °C 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.
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