Introduction
As governments and industries worldwide pursue carbon-neutral targets and green-building standards, construction materials must deliver energy efficiency, long-term durability, and indoor air safety—even under extreme climates or in heritage preservation projects. YDNFoam™ 4 kg/m³ ultra-light melamine foam combines exceptional lightness, superior sound absorption, outstanding thermal insulation, and inherent flame resistance, making it a premier choice for advanced architectural and environmental applications across global markets.

1. Product Overview
YDNFoam™ 4 kg/m³ series is one of the lightest acoustic and thermal insulation materials available today.
Extreme Lightweight – Density of only 4 kg/m³, 30–60 % lighter than conventional glass wool or mineral wool, dramatically reducing structural loads.
Nano-Scale Microcell Structure – Three-dimensional network achieves an NRC up to 0.85, significantly lowering reverberation and ambient noise.
Inherent Flame Resistance – Meets UL94 V-0, DIN 4102 B1, and GB 8624 B1 standards without additional flame retardants.
Low VOC & Eco-Friendly – Certified to EU REACH, RoHS, and China Green Building Label; fully compatible with LEED and BREEAM green-building certifications.

2. Key Application Areas
Heritage Building Acoustic & Thermal Layers
Invisible Integration – Can be installed behind walls or ceilings of temples, museums, and historical structures without altering original appearance.
Low VOC, Fire-Safe – Protects air quality and meets stringent fire-safety requirements for cultural preservation.
Long-Term Stability – UV-resistant and non-yellowing with a service life of 20 + years.
High-Altitude Thermal & Anti-Condensation Systems
Extreme Climate Performance – Operating range of -200 °C to +240 °C withstands severe temperature swings in mountain tunnels, camps, and infrastructure above 4,000 m.
Lightweight Logistics – Ultra-low density cuts transportation and installation costs in remote regions.
Moisture Barrier – Micro-porous matrix effectively prevents condensation and frost.
Green-Building Ceilings & Wall Cavities
Energy Efficiency – Thermal conductivity as low as 0.035 W/m·K reduces HVAC loads.
Certification Friendly – Adds LEED/BREEAM credits for schools, offices, hospitals, and conference centers.
Healthy Indoor Air – Formaldehyde-free and fiber-dust-free for long-term occupant safety.

3. Why Choose YDNFoam™
Feature Glass/ Mineral Wool PU Foam YDNFoam™ 4 kg/m³
Density 12–40 kg/m³ 20–50 kg/m³ 4 kg/m³
Flame Rating A1 B3–B2 UL94 V-0 / GB B1
Thermal Conductivity 0.040–0.045 W/m·K 0.040–0.045 W/m·K 0.035 W/m·K
VOC Emissions Medium–High Medium–High Ultra-low, REACH & RoHS
Service Life 10–15 years 8–12 years 20–25 years
Conclusion: YDNFoam™ leads in lightness, durability, and environmental safety, offering an unrivaled combination of acoustic and thermal performance for global high-end construction.

4. Global Market Outlook
Green-Building Momentum – Worldwide adoption of LEED, BREEAM, and other sustainability standards drives demand for ultra-low-VOC, energy-efficient insulation.
Extreme-Climate Infrastructure – Expanding projects in alpine, polar, and desert regions require high-performance, lightweight materials.
Cultural Preservation Growth – Restoration of historic landmarks worldwide increases the need for discreet, non-intrusive acoustic and thermal solutions.

5. Core Advantages at a Glance
World’s Lightest Class – 4 kg/m³ ultra-low density
High Acoustic Absorption – NRC up to 0.85
Superior Thermal Insulation – 0.035 W/m·K
Global Fire Compliance – UL94 V-0, DIN 4102 B1
Eco-Friendly & Low VOC – REACH/RoHS compliant, LEED/BREEAM ready
Long Service Life – 20–25 years of stable performance

Contact Us
YDNFoam™ | Advanced Melamine Foam Solutions
📧 Email: [email protected]
🌐 Website: www.ydnfoam.com
📞 Phone / WeChat: +86-135-4070-2776 | +86-135-8634-6868
📍 Address: No. 2088, Jiuliting Avenue, Caoqiao Street, Pinghu City, Zhejiang Province, China