Characteristics and Differences between Mineral Wool Boards and Mineral Wool Sound-Absorbing Boards

In the field of building acoustic materials, mineral wool-based boards are widely used due to their excellent comprehensive performance. However, "mineral wool boards" and "mineral wool sound-absorbing boards" often cause cognitive confusion because of their similar names. From the perspectives of materials science, acoustic principles and engineering applications, this article systematically compares the differences between the two, and combines the innovative technology of Earppie Sound Insulation to provide a precise material selection guide for different scenarios.

Part 1. Differences in Material Composition

Earppie Acoustics, through its intelligent proportioning system, implants a "honeycomb-like microporous structure" into mineral wool sound-absorbing panels, reducing the sound wave reflectivity from 60% of traditional panels to 35% and increasing the absorption efficiency by 40% (test frequency range: 125-4000Hz).

Part 2.Performance Comparison

▍1. Core Acoustic Performance

• mineral wool board

• Main function: Decorativeness > Sound absorption, Noise Reduction Coefficient NRC=0.6-0.7 (mainly absorbing medium-frequency sound)

• Advantageous scenarios: Commercial spaces emphasizing aesthetics, such as hotel lobbies and office building ceilings

• Limitations: Insufficient high-frequency sound absorption (>2000Hz sound absorption <50%), weak low-frequency sound insulation (<250Hz transmitted sound energy >40%)

• mineral wool sound-absorbing board

• Core advantages: Full-frequency sound absorption, NRC=0.8-0.95 (high-frequency sound absorption > 85%), and can absorb low-frequency noise with cavity design (125Hz sound absorption ≥ 60%)

• Technical keys: perforation rate, fiber bulkiness, backing material (Earppie's standard 5mm glass fiber cloth, which increases low-frequency sound absorption efficiency by 20%)

▍2. Comparison of Physical Properties

Earppie Acoustics has reduced the thermal conductivity of mineral wool sound-absorbing panels to 0.038W/(m·K) through aerogel composite technology, improving the thermal insulation performance by 20% compared with traditional products, while maintaining the lightweight property (surface density ≤ 10kg/m²).

Part 3. Application Scenarios

▍1. Mineral wool board: A balance between decorativeness and practicality

• Applicable Scenarios

• Commercial space ceilings (such as shopping malls, hotels): The surface can be customized with more than 20 finishes such as wood grain and stone grain, and can create artistic effects with LED light strips.

• Light-load partition walls: The 6mm ultra-thin model can be used for office partitions, with a single-point hanging weight of ≥5kg (meeting the installation requirements of fire sprinklers and lamps)

• Earppie product solutions

• Xingshuo Series Mineral Wool Board: Adopts a nano anti-fouling coating, with a scrub resistance of more than 10,000 times, suitable for high-traffic places; available in various specifications such as 600×600mm and 300×1200mm, compatible with different keel systems.

▍2. Mineral wool sound-absorbing board: Core material for professional acoustic environments

• Typical Applications

• Concert Hall / Recording Studio: Equipped with a 100mm air layer, the medium-frequency sound absorption capacity is increased to 92%, and the reverberation time RT60 is controlled within 0.8-1.2 seconds (in line with GB/T 50356-2005 standard)

• Meeting Room / Lecture Hall: 5mm micro-perforated design (aperture 2mm, hole spacing 5mm), Speech Transmission Index STI≥0.75, ensuring speech clarity

• Industrial noise reduction: Laying on the walls of equipment rooms, combined with damping layers to reduce low-frequency vibration transmission, with a comprehensive noise reduction of ≥20dB

• Earppie's Star Products

• Patent "Three-dimensional Fiber Locking Technology": Fiber bonding strength increased by 30%, flocculation rate < 0.05% (better than the industry standard of 0.1%)

• Intelligent adaptation system: providing various interface designs such as those with chamfers (facilitating seamless splicing) and tenons (enabling quick installation)

• Test data：12mm thick plate, NRC=0.92, weighted sound insulation Rw=28dB (up to 35dB when matched with keel cavity)

▍3. Special Scene Solutions

• Humid Environment: Earppie has launched moisture-proof mineral wool sound-absorbing panels (with aluminum foil film on the surface), with a moisture absorption rate of ≤1.5%, suitable for swimming pools and underground spaces

• High-temperature environment: High-temperature resistant mineral wool (melting point > 1000℃) is used, combined with a silicon-based coating, allowing long-term use in a 200℃ environment

Part 4.Purchase Guide

1. 1. Clarify functional priorities

• Emphasize decoration over sound absorption: Choose mineral wool boards (rich finishes, high strength)

• High sound absorption and heat insulation: Choose mineral wool acoustic panels (full-frequency noise reduction, low thermal conductivity)

• Special requirement: Contact Earppie acoustic engineers to provide sound field simulation analysis (using CATT-Acoustic software)

2. 2. Core Parameters

• Sound absorption performance: Check the NRC value (≥0.8 is preferred) and request the sound absorption coefficients for the four frequency bands of 250/500/1000/2000Hz.

• Fire rating: Public places must have Class A. All Earppie products have passed the certification of the National Fire Equipment Quality Supervision and Inspection Center.

• Installation compatibility: Confirm that the board size matches the keel system (Earppie supports customization of any specification from 300-1200mm)

3. 3. Advantages of the System Solution

• On-site acoustic testing (noise spectrum analysis, reverberation time measurement)

• Customized solution design (including CAD drawings and 3D renderings)

Part 5. Industry Trends: From Single Materials to System Solutions

With the increasing requirements for building acoustics, mineral wool-based materials are shifting from "single product competition" to "system integration". Earppie redefines industry standards through three major innovations:

1. Material Composite: Launched the "mineral wool sound-absorbing board + damping sound-insulating board" composite system, with the wall sound insulation reaching 50dB (traditional single material is only 35dB)

2. Functional Modularization: Develop detachable and replaceable unit-type sound-absorbing panels, which improve maintenance efficiency by 60% and are suitable for machine rooms and equipment rooms that require frequent maintenance.

3. Green and Sustainable: Establish a mineral wool waste recycling system with a product recycling rate of 85%, meeting both LEED and China Green Building Material certifications

The essence of choosing mineral wool panels lies in finding the optimal balance among decorativeness, acoustic performance, and durability. With 20 years of experience in researching and developing acoustic materials, Earppie takes "precise adaptation" as its core and provides scientific material combination solutions for each project — making professional acoustic effects no longer rely on empirical judgment but on data-based precise design.