1. Product Overview
Rock wool strips are manufactured from natural basalt, melted at high temperature and processed into fibers. The fibers are arranged perpendicular to the surface, giving the product unique characteristics compared to other rock wool products. It provides four core performances: fire resistance, thermal insulation, sound absorption, and weather resistance, making it widely used in both industrial and civil buildings for high-standard safety protection.
2. Technical Parameters
|
Product Properties |
Unit |
Density |
Standard |
|
80 |
100 |
||
|
Combustion performance |
/ |
Non-combustible material, Class A1 |
GB/8624 |
|
Compressive strength (10% deformation) |
kPa |
≥40 |
GB/T 25975 |
|
Tensile strength |
kPa |
≥100 |
GB/T 25975 |
|
Hydrophobicity |
% |
≥98.0 |
GB/T 25975 |
|
Melting temperature |
℃ |
>1000 |
GB 8624 |
|
Acid resistance coefficient |
/ |
≥1.8 |
DB 37/T1887-2011 |
|
Moisture absorption (by mass) |
% |
≤1.0 |
GB/T 25975 |
|
Thermal conductivity (mean temp. 25℃) |
W/(m·K) |
≤0.046 |
GB/T 25975 |
|
Dimensional stability |
% |
≤1.0 |
GB/T 25975 |
|
Water absorption (partial immersion) |
Kg/m² |
Short-term (24h) ≤0.5 |
GB/T 25975 |
|
Long-term (28 days) ≤3.0 |
|||
|
Thickness tolerance |
mm |
±2 |
GB/T 25975 |
|
Squareness deviation |
mm/m |
≤5 |
GB/T 25975 |
|
Flatness deviation |
mm |
≤6 |
GB/T 25975 |
|
Combustion performance at uniform temperature |
Linear shrinkage % (750℃, 0.5h) ≤8 |
JGJ 289-2012 |
|
|
|
Mass loss % (750℃, 0.5h) ≤10 |
|
|
Note: For additional technical specifications, please consult our sales manager.
3. Product Features
ü Sound absorption / Noise reduction: Open structure provides excellent acoustic insulation, effectively reducing industrial and domestic noise.
ü Fire resistance: Non-combustible, does not burn or spread flames. Fire resistance:
ü 100mm thickness: up to 120 min
ü 80mm thickness: up to 60 min
ü 50mm thickness: up to 30 min
Ensures reliable protection for life and property.
ü Compressive strength: The vertical fiber orientation allows it to withstand heavy loads.
ü At 5% compression: >25kPa
ü At 10% compression: >40kPa
Suitable for high-strength applications.
ü Moisture resistance: Water-repellent while allowing vapor release, preventing material degradation or structural damage.
ü Chemical & Biological stability: Neutral to slightly alkaline (pH≈7), complies with ASTM-C-795 and JIS-A-9504, resistant to mold, fungi, and bacteria, ensuring long-term durability.
4. Applications
Industrial: Nuclear power plants, thermal power stations, petrochemical plants, and refineries for insulation and noise control.
Building:
External wall insulation: Improves energy efficiency and fire safety.
Curtain wall insulation: Provides reliable fire and thermal protection while maintaining architectural aesthetics.
Partition walls, firewalls, fire doors, and elevator shafts.
Marine: Thermal insulation, fire separation, and soundproofing in cabins, sanitary units, and crew living areas.
Agriculture: Greenhouses for vegetables, fruits, and flowers, creating a stable microclimate.
5. Advantages
ü High cost-performance ratio: Excellent fireproofing, insulation, acoustic, compressive strength, and moisture resistance at competitive cost.
ü Easy installation: Lightweight, available in multiple specifications, easy to transport and install, reducing project timelines.
ü Eco-friendly: Non-toxic, pollution-free, compliant with environmental standards, suitable for sustainable buildings.
6. Customization Service
We offer customized densities, thicknesses, and dimensions according to specific customer requirements, whether for unique architectural designs or industrial insulation needs.
7. Installation & Safety Guidelines
Storage: Avoid outdoor stacking; keep dry and protected from rain.
Installation:
For sandwich panels: use quick-drying adhesives.
For external walls: combine with alkali-resistant fiberglass mesh and anchor bolts.
Safety: Wear dust masks when cutting to minimize inhalation of fibers.
8. FAQ
Q1: What is the fire resistance rating of rock wool strips?
A1: Class A1 non-combustible, meeting international standards.
Q2: What should be noted during installation?
A2: Avoid outdoor exposure to rain; wear protective masks during cutting.
Q3: What is the service life of rock wool strips?
A3: 15–20 years under normal conditions; longer in non-corrosive environments.
Q4: How to choose the density?
A4: 80–120kg/m³ for general insulation; ≥150kg/m³ for load-bearing applications.