The acoustic core is the functional heart of noise barrier system.
A high-end metal material combining acoustics, mechanics, and extreme weather resistance. Designed for harsh outdoor and industrial environments, its unique cellular structure absorbs noise while providing structural support.
Aluminum foam features a rigid metallic structure with excellent mechanical strength. It does not deform under pressure and provides strong resistance against wind loads and external impact.
Fully metallic and highly resistant to environmental conditions. It does not absorb water, is UV-resistant, corrosion-resistant. Service life exceeds 20 years.
Known for excellent cost-performance and installation flexibility. It is the preferred choice for bridges, indoor spaces, and enclosed acoustic barriers due to its minimal structural load.
Low density makes it ideal for bridge-mounted systems. Reduces structural stress while maintaining superior sound absorption profiles.
Soft, easy to cut, and highly adaptable. Particularly suitable for filling cavity structures in composite noise barriers.
| Feature | Aluminum Foam | PU Acoustic Foam |
|---|---|---|
| Key Applications | Open barriers, tunnels, high-impact areas | Enclosed barriers, indoor insulation |
| Protection Needs | No extra protection needed (exposed) | Requires coating/wrapping for outdoors |
| Fire Resistance | Class A (Native) | Class B1 (Upgradable) |
| Installation | Mechanical fixing, self-supporting | Filling / Adhesive installation |