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Help CenterSoundproof Metal Sandwich Exterior Wall Panel, 50mm Mineral Wool Core, Sound Reduction Index STC 35, 1.2m Width
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Hemaokang Steel (Shandong) Co., Ltd. is proud to introduce our Soundproof Metal Sandwich Exterior Wall Panel – a premium solution for modern building envelopes that demand both acoustic performance and structural reliability. Manufactured with a 50mm mineral wool core and engineered to achieve a Sound Reduction Index of STC 35, this panel effectively reduces noise transmission, making it ideal for commercial, industrial, and residential projects near highways, airports, or noisy urban environments. With a standard width of 1.2 meters and customizable lengths, our panels offer flexibility for architects and contractors seeking efficient installation and long-term performance.
Our factory in Liaocheng, Shandong, China operates with an annual export value of US$50 million to US$100 million and a dedicated team of 51–100 employees. We are ISO9001:2015 certified, ensuring strict quality control from raw material selection to final product. The mineral wool core provides excellent thermal insulation, fire resistance, and sound absorption, while the metal skins (galvanized steel or color-coated steel) offer durability and weather resistance. Below we detail the key features and specifications.
Key Features & Technical Specifications
- Superior Soundproofing: STC 35 rating effectively reduces airborne noise by 35 decibels, suitable for offices, schools, hospitals, and residential buildings.
- Mineral Wool Core: Non-combustible, moisture-resistant, and provides excellent thermal insulation (R-value approximately 1.5–2.0 per inch depending on density).
- Metal Skin Options: Choose from galvanized steel (G90/G140) or prepainted color-coated steel (PVDF, SMP, or HDP coatings) for enhanced corrosion resistance.
- Precision Engineering: Panel thickness: 50mm (±0.5mm); width: 1.2m (1,200mm); length: customized from 2m to 12m.
- Easy Installation: Tongue-and-groove joint design ensures airtight sealing and quick assembly, reducing labor costs.
- Wide Application: Exterior wall cladding, partition walls, clean rooms, cold storage, and sound barriers.
| Parameter | Value |
|---|---|
| Core Material | Mineral Wool (density: 80–120 kg/m³) |
| Panel Thickness | 50mm |
| Effective Width | 1,200mm (1.2m) |
| Length | Customizable (standard up to 12,000mm) |
| Metal Skin Thickness | 0.4mm – 0.8mm (optional) |
| Sound Reduction Index | STC 35 (tested per ASTM E90) |
| Thermal Conductivity (λ) | 0.035 – 0.045 W/m·K |
| Fire Rating | A1/A2 (non-combustible, test reports available upon request) |
Advantages for Your Project
- Energy Efficiency: The mineral wool core reduces heat transfer, lowering HVAC loads and energy bills.
- Durability: Metal skins resist rust, impact, and UV degradation; panels maintain structural integrity for decades.
- Acoustic Comfort: STC 35 ensures a quieter indoor environment, increasing productivity and well-being.
- Fire Safety: Mineral wool does not burn and acts as a fire barrier, enhancing building safety.
- Eco-Friendly: Mineral wool is made from recycled materials and is fully recyclable; our production process follows ISO 14001 environmental standards (available upon request).
- Cost-Effective: Lightweight design reduces structural load; fast installation minimizes labor costs.
At Hemaokang Steel (Shandong) Co., Ltd., we have been delivering high-quality metal sandwich panels since our establishment in 2025. With an annual export value exceeding US$50 million and a team of experienced professionals, we serve clients across North America, South America, Europe, Africa, Oceania, the Middle East, and Asia. Our ISO9001:2015 certification guarantees consistent quality, and we offer custom sizes, colors, and surface finishes to meet your specific requirements. We also provide samples, technical drawings, and third-party test reports upon request.
Why choose us? Our commitment to excellence, competitive pricing, and reliable after-sales support have made us a trusted partner for global construction projects. Whether you need acoustic panels for a hotel, office building, or industrial facility, our Soundproof Metal Sandwich Exterior Wall Panels deliver performance you can count on. Contact us today for a quotation or to discuss your project needs.
Frequently Asked Questions (FAQ)
- Q: What is the STC rating of this panel? A: The panel achieves a Sound Reduction Index of STC 35, tested according to ASTM E90 standards. This rating is suitable for most commercial and residential applications where moderate soundproofing is required.
- Q: Can the panel be used for interior walls? A: Yes, while designed primarily for exterior walls, it can also be used for interior partitions, sound barriers, and clean rooms due to its excellent acoustic and thermal properties.
- Q: What colors are available? A: We offer a wide range of RAL colors. Custom colors can be matched upon request, and surface finishes include smooth, embossed, and textured options.
- Q: Is the mineral wool core environmentally friendly? A: Yes, mineral wool is made from natural basalt rock and recycled slag, and it is fully recyclable. It does not emit harmful gases and contributes to green building certifications.
- Q: How long does the panel last? A: With proper installation and maintenance, the panels can last 20–30 years or more, depending on the environment. The metal skin is coated to resist corrosion and UV degradation.
- Q: Do you provide installation instructions? A: Yes, we provide detailed installation manuals and technical support. Our panels feature a tongue-and-groove joint system for easy assembly.
- Q: Can I get a sample before ordering? A: Absolutely. We offer free samples (shipping cost may apply) and can also provide small quantities for testing. Contact our sales team for details.
- Q: What certifications do you have? A: Our factory is ISO9001:2015 certified. We can also provide test reports for fire resistance, sound transmission, and thermal conductivity upon request.
Contact Hemaokang Steel (Shandong) Co., Ltd. today to discuss your project. With our global reach and quality assurance, we are your reliable partner for soundproof metal sandwich panels. Your satisfaction is our priority.
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