Fireproof Insulation Blanket Fiber Glass Glasswool Water-Repellent Sound-Proof Heat-Insulating With Aluminum Foil
Sunwool Glasswool Blanket is an advanced elastic glass fiber insulation material manufactured using a specialized centrifugal process. In this method, molten glass is fibrized into ultra-fine filaments—each merely microns in diameter—and bound with environmentally friendly, thermosetting resin-based adhesives.
Our Glass Wool Blanket is a flexible, high-performance insulation material designed to deliver exceptional thermal efficiency, noise reduction, and fire safety. Crafted from recycled glass fibers bonded with thermosetting resin, this lightweight yet durable blanket is ideal for insulating pipes, ducts, equipment, and structural cavities.
Depending on client specifications, a moisture-proof facing can also be integrated during online production. Its structure contains numerous microscopic air pockets, providing exceptional thermal insulation, effective sound absorption, and reliable fire safety. These combined properties establish it as one of the leading insulation and acoustic materials for modern construction applications. Whether for industrial facilities, commercial buildings, or residential projects, our glass wool blanket ensures energy savings, compliance with international standards, and long-term reliability.

| Category | Key Performance Characteristics |
|---|---|
| Temperature Range | Operating limits from 1000°C to 1600°C depending on grade. |
| Thermal Conductivity | Ultra-low values (e.g., < 0.12 W/m·K at 600°C) for maximum heat retention. |
| Physical Form | Fiber blankets, rigid boards, vacuum-formed shapes, and modules. |
| Standard Compliance | ASTM, ISO, and EN international refractory safety standards. |
- Significantly reduces fuel consumption and operational costs.
- Superior Thermal Insulation: Low Thermal Conductivity (0.032–0.042 W/m·K) minimizes heat loss or gain, optimizing energy efficiency in HVAC systems and industrial processes.
- Non-Combustible & Fireproof: A1 Fire Rating meets EN 13501-1 and ASTM E84 standards, ensuring safety in fire-prone areas.
- Excellent Sound Absorption: Noise Reduction Coefficient (NRC) up to 0.90, effectively dampens airborne and impact noise for quieter workspaces.
- Industrial workshops and warehouses, where it manages temperature and reduces noise from machinery.
- Indoor recreational spaces such as playgrounds, sports arenas, gymnasiums, and auditoriums, effectively controlling echoes and ambient sound while improving energy efficiency, thereby creating safer and more comfortable interior environments.
- Public facilities, exhibition halls, and shopping centers to enhance environmental comfort and clarity.
- Extensively employed for thermal insulation and acoustic damping across a diverse range of commercial and public structures.







Selection depends on the maximum operating temperature, thermal cycling frequency, and chemical atmosphere. Please provide your design specifications for a tailored recommendation.
We offer a range of bio-soluble (low-bio-persistence) fibers that meet international health and safety standards for handling and usage.
Yes, we provide vacuum-formed custom shapes, blocks, and modules based on your CAD drawings to ensure a perfect fit for your equipment.
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