Glass Wool Blanket For Heat Insulation

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Production Description

Glass wool blanket is in flexible form for ease of installation over large areas. Both products are available to order with a wide range of density and thickness, and with various types of facing applied.

Standard Size






10 - 48











Other sizes available upon request  Facing materials can be applied upon request

Technical Data




Average Fiber Diameter



Water Content



Grade of Combustibility

Non-Combustible Grade A

Thermal Conductivity

( 25℃)


0.038- 0.045

Reshrinking Temp





Moisture Rate



Noise Resistant Coefficient (NRC)


Slag Inclusion Content




Glass Wool are widely used in public, commercial and residential buildings as well as industrial plants, for applications such as roofing, external wall, partition wall and floating floor to provide fire protection, thermal insulation, acoustic control and condensation control.

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Q:How to distinguish green glass wools?
Rock wool is much harder than glass silk. rock wool color: Khaki, deep. glass silk wool color: yellow, light. Cellosilk is not the same. Rock wool is harder while glass silk wool is softer. Rock wool is white, without elasticity. It is irritating to skin. But glass wool is yellow, with elasticity and without irritation to skin. Glass wool is made through high temperature melting of industrial waste glass, and then making glass into flow by high-speed centrifuge, pulling glass flow into fiber under high temperature and high speed. Rock wool is inorganic fiber made by base materials of fine basalt after high temperature melting in high-speed centrifugation equipment. Glass wool is more economical and environmentally friendly than rock wool.
Q:Are thermal insulation glass wool boards hydrophobic?
It has poor performance in fireproofing and thermal insulation, and has a high heat conductivity coefficient. At present, it meet requirements of thermal insulation and energy saving policy for external walls. Glass wool is heavy itself, easy to slag. It can lead to serious pollution during construction and produce cancerogenic substance. It is highly absorbent, and easy to peel off. The operation life of which is short.
Q:There is an engineering air-condition air duct which uses aluminum foil glass wool for heat conservation, supervor require that it should be added a protective layer made by glass fiber cloth. according to peremptory norms,
Aluminum foil layer itself is a protective layer, which has no need to be increased more protective layers, is using glass cloth for heat conservation layer, you can buy glass fiber cloth without aluminum foil protective layer. However, the protective layer of aluminum foil is really easy to damage, but its impact on air duct is not larger than water pipe, which is acceptable.
Q:could experts tell me the producing method of insulating layer for glass wool board?
If you have already taken the composite board as interior wall, you don't have to do the final construction, because the inside and outside layer of composite board have been very smooth and no defects, if you want to do surface construction, there will demand many materials, because there is no surface composite board, but only those with grooves on the market, and the groove itself is for increasing the weight and pressure bearing strength of composite board. Supplement: Glass wool composite board is metal surface fireproof panel, it's mainly made of rock wool and glass wool, it takes high quality coating steel plate as the plane material, continuous cotton fiber, rock wool and glass wool as the core material, high-density hard foamed polyurethane as the tongue-and-groove filling, shaped after high pressure foaming solidified, automatic solid cotton cloth and controlled by the ultra-long precision double track.
Q:How to conduct thermal insulation construction of external wall glass wool?
The construction period of insulation consrtuction of this project takes 20 days, which is a tight schedule, so the insulation construction should be organized properly to ensure the insulation construction period. The insulation construction of Dingfuzhuang secondary school needs to undergo the following process: firstly conduct construction of external wall insulation of teaching building; secondly conduct construction of external wall insulation of laboratory building and finally conduct construction of external wall insulation of cafeteria. Scaffolds of the outer edge of the teaching building have been fully completed, so the four facades of the teaching building can be constructed simultaneously in a bottom-up way. When shotcrete construction of the outer edge of laboratory building finished, it then can conduct insulation construciton of the outer edge of laboratory building. At this time, thermal insulation construction of teaching building have not fully completed, which requires supplement labor force to ensure thermal insulation construction of these two buildings to be conducted simultaneously. When the outer edge of cafeteria is qualified for thermal insulation construction, it needs to supplement labor force for thermal insulation construction, so that these three building can conduct thermal insulation construction simulanteously.
Q:What is the price of glass wool felt ?
Different thickness and density of the glass wool, different price. Generally it is a few dollars one square meter. Glass wool and rock wool are divided into: board, pipe, roll mat. This depends on how much K (density) you need. Now the factory price of glass wool is around 2500yuan per ton.
Q:What are the industry standards of glass wool and its products?
Conventions of Quality Management of Enterprises producing Glass Wool and its Products by National Building Materials Bureau Chapter I General Provisions 1. In order to strengthen the quality management of enterprises producing glass wool and its products, and constantly improve quality of products, the cnventions are formulate in accordance to "Product Quality Law of People's Republic of China" and the relevant regulations of the State Council. Associated regulations: 2. Enterprise leaders and workers should continually enhance the awareness of quality and adhere to the development of quality and efficiency, firmly establish the concept of "quality first" and "customer service" and continue to strengthen quality control in the production process to ensure that raw materials, fuel, semi-finished products, finished products and packaging and storage are up to technical standards. Article 2 Enterprises should set advanced, rational and scientific quality principles and objectives. Legal representatives should be in full charge of products quality, and the department of quality management should take full responsibility in management. Distribution of income within the enterprise should be made to link with the quality of work and products, and implement veto of quality. Article 4 Enterprises must strictly enforce product standards, establish and improve the quality system, and implement quality functions combined with the reality of the enterprises in accordance with GB / T19000 a ISO9000 "quality management and quality assurance" series of standards and the provisions of this Regulation. Capable enterprises should draw up "quality Manual", and seriously implement it.
Q:Does glass wool belong to the asbestos insulation material?
Asbestos products have many varieties and they are mainly used for thermal insulation in industrial equipment and industrial pipes. The operating temperature is within 600 ℃. Compared with glass wool, asbestos products also have more forms. They include asbestos cloth, rope, tape, sheet, blanket, packing (sealing materials), quilt (for fire suppression) and paper.Glass wool is mainly used for thermal insulation of buildings and air ducts. The operating temperature is within 450 ℃.The main products areglass wool plates and carpets.It need to be noted that asbestos is non-environmentally friendly materials and it is radioactive. Long-term contact with it may do great harm to the human body, thus the production of it is banned.
Q:What is the difference between rock wool and glass wool?
Q:Does anyone know about the filling materials in the steel stud, is it glass wool or mineral wool?
Relatively glass wool of famous brand is more environmentally friendly. Rock wool has larger particles. They all have good thermal insulation and sound absorption performance, but are not recommended to use them both. The proportion of glass wool used is smaller than that of rock wool in terms of the same sound absorption performance. It may contains asbestos.

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