Q:Is the glass wool sound insulating? How good is it?

Glass wool glass fiber is a kind of inorganic fiber in the category of glass fiber.The glass wool is of corrosion resistance, chemical stability, low thermal conductivity, low bulk density, thermal insulation and good sound-absorbing property. Besides, the chemical composition of glass wool is glass.

Q:As for glass wool board and rock wool board, which kind of material is better?

Glass wool has light unit weight, thin fiber, good sound absorption, rock wool fireproofing performance, good hydrophobic performance, low price, both two have their advantages, it depends on the specific usage, If you are interested in it, we can discuss with each other, personal opinions for reference only.

Q:What kinds of thermal insulation method do the Insulation glass wool insulation materials belong to?

The operating temperature of glass wool insulation materials are from -120 ℃ to 400 ℃. They can be used for thermal insulation and sound absorptionin in fields of construction, petrochemical, electric power and metallurgy.

Q:Who can tell me about the unit weight of glass wool board?

Glass wool has a good sound absorption performance in the high-frequency sound. The main factors affecting the centrifugal glass wool' sound absorption performance are thickness, density and air flow resistance, etc. Density is the weight per cubic meter of materials. 1. with the increase of thickness, the low frequency sound absorption coefficient significantly increases, but there is little change in the high frequency (high frequency absorption is always larger). 2. thickness is the same, the unit weight increases, the low frequency sound absorption coefficient also increases; but when the unit weight increases to a certain extent, the material becomes dense, the flow resistance is greater than the optimum flow resistance, sound absorption coefficient decreases.

Q:What are the hazards of glass wool to body?

Glass wool damage to human health: construction or aluminum foil after breaking a lot of broken glass fiber. Glass fiber will seriously damage the air quality and damage the human health

Q:What is the construction technology of glass wool felt aluminium expanded sheet sound-absorbent wall?

The the following details are about the construction technology and practices: Firstly, materials requirements: The main construction materials include asphalt felt, wood keel, gypsum board, glass wool roll mat, glass fiber cloth and perforated aluminum plate. Secondly, technological process: Dry laying a layer of asphalt felt →install wood keel → install gypsum board → paste glass wool felt → pave and nail a layer of glass fiber cloth.

Q:Why does glass wool turn black when exposed to heat? Wether it will ffect the thermal insulation effect.

The burning like alcohol lamp uses glass wool as the substrate. There are two possibilities to take alcohol lamp to do experiment, which containing organic substances. 2. 1, High temperature oxidation. I produce aerogel thermal insulation felt, and I have seen that the charcoal ash produced is attached to the glass wool. It has some impact on thermal insulation effect, but the impact is small.

Q:These two kinds of glass wool are used as insulation materials, but one keeps 0.3 in specific gravity while the other keeps 0.5 in specific gravity. Which one should be chosen?

Generally, materials with high density have better insulation effect, consequently leading a relatively higher price. You can make a layer of polyurethane on the outside. Specific gravity is another way of saying density. Materials' thermal insulation effect is related to density. So if you want to get better thermal insulation effect, you can make a layer of polyurethane on the outside. It is noted that common polyurethane has a maximum temperature of 100 degrees, while high-temperature polyurethane requires 120 degrees.

Q:what is the quota of glass wool rigid section of thermal insulation.

what is the meaning of your words! are you asking the size! (I am a thermal insulation material wholesalers and if you have any questions please ask me)

Q:Whether the rock wool is belong to the glass wool product or not.

Rockwool certainly do not belong to the glass wool products, rock wool is rock wool, glass wool is glass wool.