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Class A Fireproof Rock Wool Board – 120kg/m³ / 140kg/m³ for Exterior Wall Insulation
Class A Fireproof Rock Wool Board – 120kg/m³ / 140kg/m³ for Exterior Wall Insulation
Specifications
Tensile Strength :
≥7.5 / 10 kPa (FR120), ≥10 / 15 kPa (FR140)
Density :
120kg/m³ / 140kg/m³
Payment Terms :
L/C,T/T
MOQ :
1 container.
Hydrophobic Rate :
≥99.0%
Thermal Conductivity :
≤0.038 W/m*K (FR120), ≤0.040 W/m*K (FR140)
Acidity Coefficient :
≥2.0
Place of Origin :
china
Combustibility :
Class A1 non-combustible
Description
Class A Fireproof Rock Wool Board – 120kg/m³ / 140kg/m³ for Exterior Wall Insulation
Product Overview

Specially engineered for external wall thermal insulation systems (ETICS), our Class A fireproof rock wool slab is available in 120kg/m³ and 140kg/m³ densities. Manufactured from high-quality basalt through advanced melting, fiberizing, and curing processes, these boards deliver exceptional energy efficiency performance, Class A non-combustibility, excellent tensile strength, and long-term weather resistance.

With density options tailored to different climate zones and structural requirements, they help meet national energy-saving standards while optimizing material thickness, reducing structural load, and controlling project costs.

Application Guidelines
  • 120kg/m³ Rock Wool Slab: Ideal for cold climate zones, where thinner insulation layers can meet energy standards—reducing wall load and enhancing safety for high-rise buildings.
  • 140kg/m³ Rock Wool Slab: Suitable for hot summer and cold winter regions, offering balanced insulation thickness and performance for public and residential projects with high fire and durability demands.
Technical Specifications
Parameter FR120 FR140
Density (kg/m³) 120 140
Tensile Strength (kPa) ≥7.5 / 10 ≥10 / 15
Thermal Conductivity (W/m·K, 25°C) ≤0.038 ≤0.040
Combustibility Class A1 non-combustible
Acidity Coefficient ≥2.0
Hydrophobic Rate (%) ≥99.0
Class A Fireproof Rock Wool Board – 120kg/m³ / 140kg/m³ for Exterior Wall Insulation
Key Features & Advantages
Density-Graded Design for Climate & Load Optimization

120kg/m³ products achieve required energy efficiency in cold regions with thinner insulation, minimizing structural load and safety risks. 140kg/m³ provides optimal insulation thickness for mixed climates, balancing performance and cost-effectiveness.

Class A Non-Combustible Fire Safety

100% inorganic fibers with a melting point above 1000°C: non-combustible, no toxic fumes, and no molten droplets—effectively blocks fire spread.

Ideal Tensile Strength for System Stability

High vertical tensile strength ensures secure bonding with the substrate, reducing the risk of insulation detachment and ensuring long-term facade safety.

Superior Weather Resistance

High acidity coefficient guarantees durability in humid, acidic, or alkaline environments—no dusting, no collapse—ensuring the insulation system remains effective long-term.

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Class A Fireproof Rock Wool Board – 120kg/m³ / 140kg/m³ for Exterior Wall Insulation

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Product Detail
Tensile Strength :
≥7.5 / 10 kPa (FR120), ≥10 / 15 kPa (FR140)
Density :
120kg/m³ / 140kg/m³
Payment Terms :
L/C,T/T
MOQ :
1 container.
Hydrophobic Rate :
≥99.0%
Thermal Conductivity :
≤0.038 W/m*K (FR120), ≤0.040 W/m*K (FR140)
Contact Supplier
Class A Fireproof Rock Wool Board – 120kg/m³ / 140kg/m³ for Exterior Wall Insulation

BBMG ENERGY SAVING MATERIAL & TECHNOLOGY(DACHANG)CO.,LTD.

Verified Supplier
1 Years
hebei, langfang
Business Type :
Manufacturer
Main Products :
Rock Wool Insulation, Rock Wool Industrial Insulation, Fiberglass Insulation
Total Annual :
>70000000USD
Employee Number :
>600
Certification Level :
Verified Supplier
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