Cold Insulation Glass Wool Blanket

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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:What industry does the glass wool belong?
It belongs to thermal insulation construction materials industry, it is also a fireproof and thermal inuslation matertial.
Q:What are the differences between glass wool felts and rock wool board in terms of appearance, and how to distinguish them?
The most significant difference is color. Glass wool is white, while rock wool is yellow.
Q:How many insulation supporting pins are there in one aquare meter of glass wool?
There are 24 insulation supporting pins in one aquare meter of glass wool.
Q:Can Kunnai glass wool board and sound absorption blankets be used to maintain sound insulation in hotel floor? Can it decrease half of the noise? How to install?
No estimate half, but still able to play a sound effect
Q:Who can tell me about the unit weight of glass wool board?
It depends on what density you need. The formula is length * width * thickness * unit weight = the weight of the glass wool. For example, if it is 20 meters long, 1.2 meters wide, 50 mm thick, and the unit weight is 20kg / cubic, that is to say, 20 * 1.2 * 0.05 * 20=24kg. 48kg / m³ means that the weight of one cubic meter is 48kg, you can imagine that with a piece of 50 square millimeter, how many of them can make a piece of cubic meter? You can get the answer by dividing 48, namely 48÷(1÷0.05)=48X0.05=2.4kg
Q:What is the highest temperature that the fireproof glass cotton can resist?
It is certain that A level is the highest. A level indicates that it is non-combustible. Level B indicates that it is fire retardant. Rock wool can resist 800 ℃ and glass wool can resist 450 ℃. The hest perservation effect of matetials of B level is relatively better.
Q:How about the quoted price of glass wool board of 96kg?
Glass wool board of 96Kg, soft package of glass wool board , Price: 14 RMB yuan per square meter. Glass wool board, glass wool for buildings, glass wool board of 96kg.
Q:What are the advantages and disadvantages of centrifugal glass wool?
Centrifugal glass wool is a kind of filiform material made by fibrillating and spraying thermosetting resin on the glass in melten state via centrifugal blowing process, which is then conducted thermosetting deep processing to make series products of a variety of uses. The fiber inside centrifugal glass wool is fluffy and staggered, with a lot of tiny pores, which is typical porous sound-absorbing material and has good sound absorption properties. Centrifugal glass wool can be made into wallboard, ceiling, space absorber, etc., which can absorb a lot of sound energy within the room, reducing the reverberation time and indoor noise. Glass wool carpets and sound-absorbing cotton blankets are an ideal kind of sound-absorbing and thermal insulation material, which are widely used in house walls, ship engine room insulation; the computer room, the refrigerated storage constant temperature; noise reduction of various generator rooms and pump rooms; adjustment of stereo cabinet and audio.
Q:During the construction of steel structure, should the aluminum foil of glass wool be directed indoors or outdoors? Why?
When the steel structure is constructed, aluminum foil of glass wool should point toward the indoor.
Q:Are fireproof glass wool and centrifugal glass wool the same?

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