In the acoustic design of performance venues such as theaters and concert halls, TianGe Acoustic sandrock acoustic panels have long secured a prominent position, distinguished by their exceptional sound absorption capabilities and eco-friendly properties. Iconic structures like the Hangzhou Xizi Concert Hall and the Langfang Grand Theatre have adopted these panels as wall cladding materials, thereby creating a clear and pristine auditory environment for audiences. However, when we turn our attention to venues with equally rigorous acoustic demands, such as sports stadiums, a critical question arises: Can sandrock acoustic panels adequately meet the acoustic decoration requirements of such facilities? This article will address this inquiry by analyzing the suitability of these panels for stadium environments through the lens of five core advantages.

Acoustic Performance: Precisely Solving the Challenge of Gymnasium Reverberation

The acoustic design of sports arenas faces two major challenges: first, excessive reverberation times in both the spectator seating and the playing field areas, which leads to diminished speech intelligibility; and second, the cumulative effect of low-frequency noise (such as footsteps and the impact of equipment). Sandrock acoustic panels offer a solution to these issues through their unique porous structure:

Micropore Design

The surface of the board is covered with irregular pores, while its interior features a multitude of interconnected microscopic channels, effectively creating "acoustic traps." When sound waves enter these pores, their energy is dissipated through friction and thermal conversion, thereby achieving highly efficient sound absorption.

Width-frequency sound absorption capability

Empirical test data indicates that it achieves an absorption coefficient of 0.7–0.9 and a sound insulation rating of 30–42 dB. It effectively covers the 500–4000 Hz frequency range—the band to which the human ear is most sensitive—and demonstrates particularly significant absorption capabilities for mid-to-high-frequency noise (such as audience chatter and echoes from public address systems).

Combined Resonance and Sound Absorption

Some products (such as the TianGe Acoustics Sandrock Sound Absorption System) combine porous sound absorption with resonant sound absorption structure through cavity design.

By combining these elements, the sound absorption bandwidth is further broadened, effectively suppressing low-frequency resonance. Taking a renovation project for a large-scale sports stadium as an example: following the installation of sandrock acoustic panels, the reverberation time was reduced from 3.2 seconds to 1.8 seconds, and the Speech Transmission Index (STI) improved by 0.15, significantly enhancing the clarity of sports commentary and emergency broadcasts.

Environmental Performance: Safeguarding the Health of Athletes and Spectators

As sports venues are high-occupancy environments, the eco-friendliness of their materials directly impacts public health. Sandrock acoustic panels utilize inorganic particles—such as natural sand grains and mineral slag—as their base material and are polymerized using eco-friendly cementing agents, thereby achieving three major environmental breakthroughs:

Zero Formaldehyde Emission

Compliant with E1-grade environmental standards, it avoids the release of harmful substances—such as formaldehyde and TVOCs—that may be emitted by traditional fiber-based sound-absorbing materials.

Antibacterial and Anti-mold

The inherent properties of its inorganic components render it impervious to humid environments; even in high-humidity settings—such as during the southern region's plum rain season or within swimming pools—it remains dry to the touch, thereby inhibiting the growth of mold.

No dust pollution

Compared to materials such as mineral wool boards—which require dust-proofing treatments—sandrock acoustic panels generate no airborne dust during installation, thereby minimizing the impact of construction on indoor air quality.

Fire Safety: Fortifying the Safety Barrier for Large-Scale Venues

As a large-scale public building, a sports stadium is subject to extremely rigorous fire safety standards. sandrock acoustic panels meet the highest fire resistance requirements through the following characteristics:

Class A Non-combustible Certification

Tested by the National Center for Quality Supervision and Inspection of Fireproof Building Materials, its combustion performance meets the Class A standard of GB 8624-2012, *Classification for Combustion Performance of Building Materials and Products*.

Low-smoke and Non-toxic

It features a smoke emission classification of S1 and a burning droplet classification of d0; it generates neither toxic fumes nor molten droplets during a fire, thereby securing precious time for personnel evacuation.

High-Temperature Stability

It maintains structural integrity even at high temperatures of 1000°C, thereby preventing secondary hazards caused by the high-temperature deformation of traditional materials.

Artistic Expression: Infusing the Gymnasium Space with Aesthetic Renewal

Custom Surface Texture

By adjusting the grit size and spraying technique, a diverse range of textures—such as sandstone, concrete, and wood grain—can be achieved, seamlessly integrating with the stadium's industrial, modern, or natural-style designs.

Freely Mix and Match Colors

We support full-spectrum customization based on the RAL color chart—ranging from sophisticated deep grays to vibrant bright yellows—to meet the distinct visual requirements of diverse event themes and team cultures.

Potential for Stylistic Innovation

Its bendable and cuttable properties enable the realization of complex shapes—such as curved walls and uniquely contoured ceilings—adding iconic visual elements to the sports arena.

For instance, a speed skating venue at a Winter Olympics utilized sandrock acoustic panel to create a "Ice Trails"-themed wall; through the use of gradient blue sand particles and streamlined contours, it seamlessly integrated acoustic functionality with artistic expression.

Convenient Maintenance: Reduces Total Lifecycle Costs

The high-intensity usage environments of sports arenas impose extremely rigorous demands on material durability. The sandrock acoustic panel extends its service life through the following design features:

Enhanced Weather Resistance

The outdoor series features natural colored sand and a corrosion-resistant coating, capable of withstanding UV radiation and acid rain erosion; it remains fade-resistant and crack-free even after prolonged use.

Impact-resistant Structure

The 8mm-thick panel features an impact strength of 10 kJ/m², capable of withstanding accidental collisions during sports events such as basketball and volleyball matches.

Easy-to-Clean Properties

The surface is dense and non-porous, making it difficult for dust to adhere; routine cleaning requires only a wipe with water, thereby reducing both the frequency and cost of maintenance.

Make a Rational Choice: Balance Performance and Cost

Although sandrock acoustic panels demonstrate exceptional performance in terms of acoustics, environmental friendliness, safety, aesthetics, and maintenance, their cost is relatively high. Therefore, it is recommended to make a targeted selection based on the gymnasium's specific positioning and budget:

High-End Venues

For venues hosting events such as the Olympic Games or National Games, a comprehensive, whole-space application is recommended to achieve optimal acoustic performance and brand image.

Community Gymnasium

Priority can be given to its use in critical areas—such as the rear wall of the audience seating area and control rooms—to strike a balance between performance and cost.

Renovation Project

For older venues suffering from severely excessive reverberation, implementing localized renovations using sandrock acoustic panels can significantly enhance acoustic quality.

From the Hangzhou Asian Games Basketball Arena to the Singapore National Sports Centre, sandrock acoustic panels are redefining the standards for sports venue acoustics—validated by the dual proof of scientific design and practical engineering application. Where athletic passion meets acoustic ingenuity, a sports environment that is clearer, safer, and more aesthetically pleasing is taking shape.

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