I. Product Overview

Perforated color-coated steel rock wool sound-absorbing and sound-insulating sandwich panel (also known as metal rock wool sound-absorbing sandwich panel) is a new type of multi-functional building exterior wall cladding panel. Its surface layer uses high-quality color-coated steel/galvanized steel sheet, with the sound-facing surface optimized for acoustic structure through a perforation process; the core material is high-density rock wool, formed at high temperatures on a professional automated production line. This product perfectly combines the structural strength of metal sheets with the sound insulation and fireproofing performance of rock wool core material, breaking through the limitations of traditional single-function sandwich panels. It is a high-end green building material integrating structural load-bearing, fireproofing, sound absorption and noise reduction, and thermal insulation, widely applicable to various scenarios with high requirements for fire resistance and sound insulation.

II. Core Acoustic Principles

This product employs a triple acoustic design: perforated sound absorption + rock wool + steel plate sound insulation, achieving a dual improvement in sound absorption and sound insulation:

1. Sound Wave Introduction: The perforated structure facing the sound surface guides sound waves through the steel plate and into the internal rock wool core material;

2. Sound Energy Dissipation: The interwoven fiber structure of high-density rock wool converts sound energy into heat energy through friction and adhesion, effectively absorbing mid-to-high frequency noise and eliminating indoor echoes and reverberation;

3. Sound Insulation and Barrier: Unabsorbed sound waves are blocked by the solid metal back panel, while the rock wool core material blocks the structural sound wave propagation path, significantly improving the overall sound insulation effect and achieving dual noise reduction.

III. Core Functions and Advantages

1. Professional Acoustic Performance, Creating a Tranquil Space

- Dual-Effect Sound Absorption and Insulation: Average sound absorption coefficient reaches over 0.8, with sound insulation up to 35-50dB. It effectively absorbs indoor echoes, optimizing the acoustic environment, and effectively blocks external noise transmission from industrial equipment, traffic, etc.

- Adaptable to Multiple Noise Reduction Needs: Specifically addresses noise pollution in machine rooms, workshops, stadiums, and other locations, creating a comfortable and quiet space.

2. Top-Tier Fire Resistance, Building a Solid Safety Line

- Core material uses Class A high-density non-combustible rock wool. All main materials are flame-retardant/non-combustible, exhibiting no combustion, dripping, or release of toxic fumes when exposed to open flame. It has a long extreme fire resistance time, fully meeting the fire protection requirements of various key projects and public buildings, eliminating fire hazards at the source.

3. Excellent Structural Performance, Adaptable to Building Needs

- Lightweight and High-Strength: The metal surface layer is resistant to bending and impact, while the sandwich composite structure boasts high overall rigidity. The lightweight panels effectively reduce the load on the building structure, making it suitable for installation on roofs, walls, and other surfaces.

- Thermal Insulation and Energy Saving: The rock wool core material has a low thermal conductivity, providing excellent thermal insulation performance, reducing energy loss and contributing to energy conservation and green building standards.

4. Convenient Construction and Maintenance, Cost Reduction and Efficiency Improvement

- Easy Installation: Standardized panel production allows for on-site cutting and simple splicing, requiring no additional maintenance, significantly shortening the construction cycle and reducing labor and time costs.

- Durable and Easy to Maintain: The metal surface layer is corrosion-resistant and anti-aging, while the rock wool core material is chemically stable, moisture-proof, and mildew-proof. Its performance does not degrade over long-term use, resulting in low maintenance costs and a service life far exceeding that of traditional panels.

IV. Applicable Scenarios

Widely used in: industrial plants, computer rooms, data centers, stadiums, rail transit stations, sound barriers, clean rooms, conference rooms, theaters, schools, hospitals, and other building projects with high requirements for fire prevention, noise reduction, and thermal insulation.

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