Glass Wool Blanket
Your Professional Glass Wool Blanket Supplier
Langfang Henggang Energy Saving Technology Co., Ltd. was established in 2020 and specializes in producing high-quality insulation materials, including rock wool, glass wool, and rubber & plastic products. Our factory is equipped with advanced production lines and core equipment, including automated systems and testing facilities. We have a skilled team focused on quality control, customer service, and innovation. With multiple production lines and a strong R&D capacity, we serve both domestic and international markets. Our products meet strict quality standards, ensuring reliable performance for industries such as construction, petroleum, power, and transportation.
Why choose us
Certifications
Our products are ISO9001 \CE and SGS certified, ensuring compliance with global quality and safety standards, which enhances their credibility in international markets.
Sales Markets
These products not only meet the needs of the domestic market, but are also exported to the United States, Russia, Canada, Poland, Korea, India, Saudi Arabia and many other countries and regions.
Quality Assurance
We maintain a comprehensive quality assurance system to monitor production processes closely, ensuring the highest quality insulation materials that meet both domestic and international standards.
Technical Support
Our experienced team is dedicated to continuous improvement, with a focus on R&D and optimizing production processes, allowing us to meet both domestic and international customer requirements.
Glass Wool Insulation Blanket
A glass wool insulation blanket is a high-performance fibrous material manufactured from recycled glass and sand, engineered to reduce heat transfer and dampen sound in residential, commercial, and industrial buildings. Known for its excellent thermal and acoustic properties, glass wool insulation is non-corrosive, lightweight, and environmentally friendly due to its high recycled content. These blankets are available in various densities, thicknesses, and performance grades to suit different applications.
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Bulk Density |
10–120kg/m³ |
|
Thickness |
25–100mm |
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Length |
3m–20m |
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Width |
1200mm |
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Volume Density |
24–74kg/m³ |
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Fiber Diameter |
<8μm |
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Thermal Conductivity |
≤0.042W/(m·h·°C) |
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Safe Operating Temperature |
-120°Cto400°C |
Advantages of Glass Wool Insulation Blanket
Excellent Thermal Insulation
Glass wool blankets provide effective thermal insulation, helping to maintain comfortable indoor temperatures and reduce energy consumption.
Superior Sound Absorption
The fibrous structure of glass wool blankets enables them to absorb sound waves, reducing noise pollution and enhancing acoustic comfort.
Fire Safety
Glass wool blankets are non-combustible and do not release toxic gases when exposed to fire, ensuring a safer environment.
Easy Installation
These blankets are lightweight and flexible, making them easy to handle and install. They can be easily cut to fit various spaces and shapes.
Long Service Life
Glass wool blankets have a long service life, typically lasting for more than 30 years when properly installed and maintained.
Environmentally Friendly
Glass wool blankets are made from recycled glass and are themselves recyclable, reducing their impact on the environment.
Wall Insulation Blankets
Installed within wall cavities—both exterior and interior—to regulate temperature and enhance acoustic privacy.
Roof Insulation Blankets
Designed for attic and roof cavity installations to minimize heat transfer between the interior and exterior environments.
PIR Foil-Backed Insulation Blankets
Hybrid insulation combining glass wool with a foil-faced polyisocyanurate (PIR) layer to enhance thermal reflectivity and moisture resistance.
Floor Insulation Blankets
Placed beneath floorboards or within floor joists to reduce heat loss and improve underfoot comfort.
Application Scenarios of Glass Wool Insulation Blanket
Residential Buildings
Glass wool blankets are commonly used in residential buildings to insulate roofs, walls, and floors, ensuring energy efficiency and thermal comfort.
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Commercial Buildings
These blankets are also employed in commercial buildings, such as offices, hotels, and hospitals, to enhance insulation and create a more comfortable indoor environment.
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Industrial Facilities
Glass wool blankets are utilized in industrial settings to insulate pipes, ducts, boilers, and tanks, preventing heat loss and reducing energy consumption.
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Transportation
They are used in the automotive and aerospace industries to insulate vehicle cabins, engine compartments, and aircraft interiors, providing thermal and acoustic insulation.
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Acoustic Applications
Glass wool blankets are widely applied in theaters, recording studios, concert halls, and other venues where sound quality and noise control are crucial.
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Specifications of Glass Wool Insulation Blanket
Density
Glass wool blankets typically have a density ranging from 10 kg/m³ to 100 kg/m³. Higher density blankets offer better insulation performance.
Thickness
The thickness of glass wool blankets can vary from 25mm to 100mm or more, allowing for customization based on specific requirements.
Width and Length
The width and length of glass wool blankets are usually standardized, with common sizes being 1.2m x 15m or 1.2m x 20m. However, custom sizes can also be obtained.
Facing
Glass wool blankets may come with a facing material such as aluminum foil or fiberglass cloth, which enhances their.
Production Process of Glass Wool Insulation Blanket
Raw Material Selection And Preparation
Materials: Sand, limestone, soda ash, and recycled glass (cullet) are the main raw materials used in the creation of glass wool. These substances were picked because when they melt, they can make glass.
Batching: The ingredients are precisely measured and combined in exact amounts. The mixing, referred to as the batch, is essential to getting the required qualities in the finished product.
Melting
Furnace: The combined batch is put into a furnace and heated to a temperature between 2,552 and 2,732 degrees Fahrenheit (1,400 to 1,500 degrees Celsius). The raw ingredients melt at this high temperature, forming molten glass.
Continuous Process: To guarantee a steady supply of material for the following step, raw materials are introduced and molten glass is taken off at a consistent pace during the continuous melting process.
Fiber Formation
Fiberizing: After that, the molten glass is sent to a fiberizing machine, which turns it into fine fibers. There are two common ways to go about doing this:
● Rotary Process: Glass is supplied into a rotor, or rotating disc, which uses centrifugal force to spin the molten glass into thin fibers.
● Blowing Process: The melted glass is blown into fine fibers using high-pressure steam or air.
Application of Binding Agent: A binding agent (often a thermosetting resin) is applied to the glass fibers while they are being produced. This binder gives the finished product the required rigidity and toughness while also aiding in holding the fibers together.
Forming The Blanket
Gathering: The coated fibers are gathered into a loose mat by means of a moving conveyor belt. By adjusting the conveyor's speed and the rate of fiber deposition, the mat's thickness and density may be changed.
Curing: The binding agent is cured by heating the loose mat to a certain temperature in a curing oven. By solidifying the mat, this technique gives it the necessary mechanical qualities and structural integrity.
WhyGlass Wool Insulation Blanket Withstand High Temperatures
Inherent characteristics of glass
Thermal stability:Glass as a material has excellent thermal stability, meaning it can withstand significant temperature fluctuations without physical or chemical changes. This stability is the fundamental reason why glass wool can withstand high temperatures.
Chemical resistance:Fiberglass is chemically inert to most substances and does not react with them, which helps maintain its structural and insulating properties at high temperatures.
Structural integrity of fibers
Fiber structure:The fine structure of fiberglass increases surface area, helping to evenly distribute heat and prevent localized hot spots that can cause damage. The high surface area to volume ratio also helps to effectively prevent heat transfer.
Density and thickness:Higher density and thicker glass wool blankets provide better insulation and can withstand higher temperatures for longer periods of time. The density and thickness of the blanket can be adjusted during the manufacturing process to meet specific heat resistance requirements.
Quality of binder
High temperature resin:The adhesives used in glass wool mats are chosen for their ability to withstand high temperatures without breaking down. These agents ensure that the fibers remain bonded together, maintaining the blanket's structural integrity and insulating properties even under high thermal stress.
Furnishing materials
Heat Resistant Finish:The surface material of some glass wool blankets can also withstand high temperatures. For example, foil-faced glass wool can reflect radiant heat, further enhancing the blanket's heat resistance. For applications where the insulation surface may be exposed to high temperatures, the choice of facing material is very important.
Precautions
Skin and Respiratory Irritation
Direct contact with loose fibers can cause itching, redness, and skin irritation. Inhaling airborne particles may lead to temporary respiratory discomfort, coughing, or throat irritation.
Long-Term Exposure
Although modern glasswool is designed to minimize fiber release, prolonged or repeated exposure without protection is not recommended and may aggravate pre-existing respiratory conditions.
Safety Precautions
Always wear protective gear including nitrile gloves, long sleeves, safety goggles, and an N95-rated respirator mask when cutting, fitting, or handling glasswool insulation.
Post-Installation Safety
Once installed and enclosed within walls, ceilings, or ducts, glasswool poses no ongoing health risk and is considered safe for long-term occupancy.
FAQ
We're well-known as one of the leading glass wool blanket manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to buy high-grade glass wool blanket for sale here from our factory.
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