Glass Wool Board Engineering Selection Guide: Fire-Resistant Insulation, Ceiling & Partition, and Curtain Wall Filling

In modern building construction, steel structure engineering and HVAC systems, thermal insulation, sound absorption and fire safety are core indicators for project acceptance and international procurement. As a premium inorganic flexible thermal insulation material, glass wool blanket features stable physical performance, flexible installation and high cost-effectiveness. Widely adopted in domestic and overseas construction projects, it has become a mainstream thermal and acoustic insulation product for bulk export.

1. Raw Material Technology & Basic Properties

Glass wool blanket is produced from natural inorganic minerals including quartz sand, soda ash and borax. Through high-temperature melting and centrifugal fiber forming, the ultra-fine fibers are bonded and cured with thermosetting resin, forming a fluffy, flexible and stable fiber structure. As a pure inorganic, eco-friendly material with excellent dimensional stability, it complies with domestic energy-saving codes and international fire protection standards, fully meeting the construction and acceptance requirements of global engineering projects.

2. Core Performance Advantages

Glass wool blanket delivers stable, standardized and indexable comprehensive performance, adaptable to various complex working conditions.

- It is classified as Class A non-combustible material, featuring outstanding high-temperature resistance. No smoke, toxic gases or molten drips are generated during fire exposure, ensuring reliable fire safety performance.

- It maintains a low thermal conductivity of 0.030～0.040 W/(m·K), providing excellent thermal insulation and energy-saving effects.

- Its porous fiber structure effectively absorbs medium and high-frequency noise, achieving superior sound absorption and noise reduction.

- Lightweight and highly flexible, it imposes no extra structural load on buildings and pipelines.

- Treated with professional hydrophobic modification, the material features low water absorption, mildew resistance and decay resistance.

- It possesses excellent acid and alkali resistance, aging resistance and insect-proof performance, ensuring long-term service stability.

- Adopting low-formaldehyde and formaldehyde-free eco-friendly formulations, it reduces construction dust and guarantees safe application.

- All products comply with CE, ASTM and other authoritative international certification standards for export.

3. Product Features & Standard Specifications

Glass wool blanket is soft and elastic, allowing free rolling and arbitrary cutting. It perfectly fits curved surfaces, irregular structures and narrow cavities with zero insulation dead zones, offering better fitting performance than rigid insulation materials.Optional composite facings such as aluminum foil and non-woven fabric are available to provide heat reflection, moisture resistance, scratch resistance and aging resistance, adapting to humid, ventilated, outdoor and other harsh environments.Standard Specification Range - Density: 12–48 kg/m³ - Thickness: 25mm, 50mm, 75mm, 100mm - Width: 1200mm, 1250mm - Length: Customizable according to project demands

4. Application Scenarios

With strong environmental adaptability, glass wool blanket is widely used in architectural and industrial fields: - Thermal insulation for steel structure roofs and exterior walls - Heat preservation and sound insulation for central air conditioning and ventilation pipelines - Sound absorption and noise reduction for equipment rooms, workshops, cinemas, KTVs and public venues - Thermal and acoustic filling insulation for light steel partition walls.It satisfies integrated engineering demands for energy saving, noise reduction and fire prevention.

5. Selection Differences: Glass Wool vs. Rock Wool

Although both are inorganic thermal insulation materials, they serve different application scenarios.Glass Wool Blanket Lower density, superior flexibility and better sound absorption performance; enables seamless construction without dead spaces. Suitable for low-temperature thermal preservation, indoor sound insulation and HVAC pipeline insulation, mainly applied in civil buildings and conventional industrial ventilation systems.Rock Wool Higher temperature resistance and higher fire endurance, mostly used for high-temperature equipment, industrial kilns, external wall fireproofing and other extreme high-temperature working conditions.Engineers can select materials accurately according to actual project requirements.

6. Project Selection Guide & Foreign Trade Advantages

Selection Guide - 50–100mm conventional thickness: suitable for general thermal insulation projects - High-density & thickened type: preferred for professional noise reduction projects - Aluminum foil faced type: optimal for outdoor, pipeline and humid environments

Export Supply Advantages We are a direct export manufacturer with complete product specifications and sufficient inventory. We support customized size, facing, packaging and OEM services with full sets of export qualification certificates. Free sample support, full-container shipment and professional one-stop selection guidance are provided to solve overseas procurement demands efficiently.Glass wool blanket is the preferred inorganic insulation material for global thermal insulation, noise reduction and fireproof engineering.

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