Friends who are familiar with architecture know it. Whether in home decoration or industrial construction, soundproofing cotton is often an essential soundproofing material. There are also many types of soundproofing cotton, and the most commonly used and widely used ones on the market are glass fiber cotton (abbreviated as glass cotton) and polyester fiber cotton. Both products have their own characteristics and advantages and disadvantages. If it is used for soundproofing in entertainment venues such as bars and KTVs, it is recommended to use glass fiber cotton (glass wool).

　　Glass fiber cotton:

　　Glass wool belongs to a category of glass fibers and is a type of artificial inorganic fiber. Glass wool is a material that fibers molten glass into a cotton like shape. Its chemical composition belongs to the glass category and is an inorganic fiber It has good molding, small bulk density, high thermal conductivity, thermal insulation, good sound absorption performance, corrosion resistance, and stable chemical properties.

　　Features of glass wool:

　　1. Fire resistance and structural seismic resistance: It has the highest fire resistance rating of Class A. Glass wool, due to its thin and long fibers, has high overall structural strength, superior tensile and vibration resistance, and is not prone to sagging, scattering, or collapse whether installed or used for a long time. Fully comply with relevant national requirements.

　　2. Insulation and environmental friendliness: Glass wool is an inorganic insulation material made mainly of colorless flat glass and quartz sand. It has superior insulation properties and is a green building material product. Construction waste can be recycled, fully meeting environmental requirements.

　　3. Chemical and acoustic properties: Glass wool has an internal porous structure and good dimensional stability of the material, which gives it superior sound absorption ability. It is not easily damaged and eroded by natural and human factors such as high temperature, lightning, rain, sunlight, acid and alkali, greatly improving the comfort of the indoor environment.

　　4. Breathability and hydrophobicity: With a porous open structure, it has better breathability than other insulation materials, which helps the timely diffusion of indoor and wall moisture, reduces the possibility of mold growth, and extends the service life of buildings. Hydrophobic glass wool used for curtain walls is a high hydrophobicity glass wool product, with a hydrophobicity rate of up to 99%. It is easy to self dry after being damp, ensuring its long-term effective insulation performance and improving the comfort of the indoor environment.

　　5. Self weight: Glass wool has good insulation and sound insulation properties, allowing its low-density products to meet the energy-saving requirements of corresponding specifications. Glass wool is the lightest material among A-grade fire insulation materials, which can not only reduce the building's own weight but also facilitate construction, improving construction efficiency.

　　Polyester fiber cotton:

　　Polyester fiber cotton, also known as sound-absorbing cotton, is a non-woven material composed of ultrafine fibers with a diameter of 1-4 microns and short fibers with a diameter of 20-30 microns produced by melt blown polyester fiber sound-absorbing cotton. The blowing and melting processing method can achieve the production of bulky and lightweight high-quality products using finer fibers.

　　The difference between glass wool and polyester fiber cotton:

　　Glass wool and polyester fiber cotton (polyester fiber sound-absorbing cotton) have different sound absorption effects, but the sound absorption effect is basically the same. It is worth noting that glass fiber is not environmentally friendly and not convenient for construction. Everyone knows that glass fiber can cause itching everywhere. The downside of polyester fiber is that it has poor flame retardancy and combustibility. Once caught on fire, it is more likely to burn than wood, so it can be used in some relatively open places. It is recommended not to use it in places like bars or entertainment venues, and when burned, it can produce a large amount of smoke that can cause poisoning and suffocation.

　　Glass wool has the function of sound insulation and absorption, which is more popular compared to other sound absorbing cotton and is widely used in engineering projects. Currently, it is incomparable to any cotton.