How does Ballesta's aluminum sheet perform in terms of sound insulation and absorption? Can the NRC reach 0.6-0.8?

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Our products with different structures and materials can provide tested acoustic performance. For example:

①For perforated honeycomb panels and the new type of micro-perforated panels composite with non-woven fabric, laboratory test data shows their Noise Reduction Coefficient (NRC) can reach 0.63. Within the mid-frequency range of 400Hz to 1600Hz, the sound absorption coefficient exceeds 0.6, providing a good effect on improving indoor speech clarity.

②For customized models utilizing a special "honeycomb core" composite structure, their sound insulation performance is measured by Sound Transmission Loss (STL), with data reaching 35-40 dB. The average sound insulation improvement across all frequency bands is approximately 15-20 dB, making them suitable for situations requiring high overall sound insulation.

③For another type of aluminum honeycomb composite panel with a foam alloy core, tests show its Noise Reduction Coefficient (NRC) is about 0.7, demonstrating relatively prominent comprehensive sound absorption and insulation performance.

Please note: All the performance data mentioned above are obtained based on standard laboratory testing environments and specific sample specifications. In actual projects, the final acoustic effect will be comprehensively influenced by various factors such as installation conditions, spatial structure, acoustic field environment, and specific product configurations (e.g., perforation rate, backing material). We recommend that you inform our technical team of your specific acoustic design goals so that we can recommend the most suitable product solution and provide more detailed technical support.