A1 Fire Retardant Mineral Rock Wool Board

Product Overview

Zhongjia Fire Retardant Mineral Rock Wool Board is a high-performance inorganic insulation material made from molten basalt and dolomite fiber, produced in Guangdong, China. As a leading B2B insulation solution, it features Euroclass A1 non-combustible fire resistance, superior sound absorption and excellent thermal insulation—core properties that set it apart in building and industrial insulation projects. Lightweight, moisture-resistant and high-temperature tolerant, this Exterior Wall Rock Wool Board complies with international safety standards (EN 13501-1) and is widely applied to building exterior walls, industrial pipelines and HVAC systems. It effectively reduces energy consumption while providing maximum fire and sound protection, making it a reliable choice for B2B clients in construction, industrial and marine industries.

Core Advantages of Mineral Rock Wool Insulation Board

A1 Class Fire Resistance (Non-combustible)

With a melting point >1000℃ and Euroclass A1 fire rating, it does not burn, melt or release toxic gases at high temperatures, forming an effective fire barrier for buildings and industrial facilities.

Superb Sound Absorption & Noise Reduction

Its irregular fiber structure absorbs and dissipates sound waves with a sound absorption coefficient of 0.7-1.0 (1000-4000Hz), reducing airborne and structure-borne noise for indoor and industrial environments.

High Temperature Tolerance

It supports continuous operating temperature ≤600℃ (max 650℃, short-term up to 750℃), suitable for high-temperature industrial insulation scenarios like boilers and pipelines.

Strong Moisture & Corrosion Resistance

With water absorption ≤0.2 kg/m² (24h) and chloride ions ≤10 ppm, it resists moisture and corrosion, maintaining performance in harsh outdoor and industrial environments.

Stable Physical Properties & Easy Installation

It features stable shape with no shrinkage or deformation, and can be easily cut, spliced and installed on walls, roofs and partitions, adapting to prefabricated and modular construction.

Eco-friendly & Cost-effective

Made from natural volcanic rock, it is non-toxic, recyclable and has low organic content (≤4.0%). Its long service life and low maintenance cost deliver high cost-performance for B2B long-term projects.

Technical Specifications of Fire Retardant Rock Wool Board

Industry Applications

Building Exterior Wall Insulation

Used for residential, commercial and office building exterior walls, it blocks heat transfer and provides A1-class fire protection, meeting building fire safety and energy-saving standards.

Industrial Factory Insulation & Noise Reduction

Installed on industrial workshop, power plant and petrochemical facility roofs/walls, it maintains stable equipment temperatures and absorbs industrial noise, improving working environments.

Fireproof Partition & Firewall Construction

Serves as the core material for fire partitions in malls, hospitals and subways, delaying fire spread, extending evacuation time and protecting personnel and property safety.

Prefabricated Building Insulation

Adapted to prefabricated and modular building walls, floors and roofs, it fits efficient construction needs and enhances the overall fire safety and energy efficiency of prefabricated projects.

Industrial Pipeline & HVAC Insulation

Ideal for industrial pipelines, tanks, boilers and HVAC duct insulation, it resists high temperatures and reduces heat loss, ensuring stable industrial operation.

Customization Service

We provide comprehensive customization for B2B clients to match diverse project requirements: customizable thickness (30-150mm), density adjustment (40-200 kg/m³) and various facing options (unfaced, aluminum foil, single/double-sided glass tissue, industrial wire mesh + aluminum foil). We also support customized dimensions (width 600mm, length120mm) and heat-shrinking packing customization for bulk transportation, with fast sample development for special industrial needs.

After-sales Support for B2B Clients

All B2B orders include professional online technical support—our experienced team provides tailored construction solutions, installation guidance and product performance analysis for industrial and building projects. We offer a 1-year warranty for all products, with free replacement for quality-related issues. For bulk and industrial orders, we provide exclusive logistics support and on-site technical guidance (on request). We also offer long-term material supply cooperation for large-scale projects, ensuring consistent product quality and on-time delivery.

FAQ

Q1: What makes this rock wool board an A1 fire retardant material?

A: It is made of molten basalt and dolomite fiber with a melting point >1000℃, reaching Euroclass A1 non-combustible fire rating per EN 13501-1. It does not burn, melt or release toxic gases at high temperatures, forming an effective fire barrier.

Q2: What is the maximum service temperature of this mineral rock wool board?

A: Its recommended continuous operating temperature is ≤600°C, maximum service temperature is 650°C, and it can withstand short-term exposure up to 750°C, suitable for high-temperature industrial insulation scenarios.

Q3: How is the sound absorption performance of this rock wool board?

A: It has an irregular fiber structure with a sound absorption coefficient of 0.7-1.0 at 1000-4000Hz, which can effectively absorb and dissipate sound waves, reducing airborne and structure-borne noise in indoor and industrial environments.

Q4: What are the core application fields of this A1 rock wool board?

A: It is widely used for building exterior wall insulation, industrial factory insulation and noise reduction, fireproof partition and firewall construction, prefabricated building insulation, as well as industrial pipeline and HVAC insulation.