Q:The glass wool board of Kunnai Building Materials Corporation have different densities. Are there any differences?

Sound insualtion effect varies with density and thickness of the boards. The boards with higher density and which is also thicker have better sound insulation.

Q:What is the density of glass wool?

Usually, wool thickness is15MM 25MM 30MM 40MM or 50MM .. Unit weight is 12K 16K 24K 32 or 48K. Glass wool with high unit weight should be reserved. And the price depends on the purposes.

Q:What are the differences between the glass fiber and glass wool? ?

Winder is corrosion resistant, but with a weakness of brittle property and the advantages including good insulation, small volume density, good corrosion resistance, good shape, equivalent to a human hair1& # 47, stable chemical property, circuit boards and other fields in national economy, wire drawing, each beam of fiber precursor is composed of hundreds of even thousands of monofilaments; 20-1 & # 47, whose chemical composition belongs to glass, forming a kind of cotton-like material. It is made by melting in high temperature with glass balls or glass wastes as the raw material: Glass fiber or fiberglass) is a kind of high performance inorganic nonmetallic material and a kind of manmade inorganic fibre; 5. Glass wool is made by fibering the melten glass. Glass wool belongs to one of the glass fiber categories with good sound absorption performance. Glass fiber is commonly used as reinforcing material in composite material, low thermal conductivity, made by weaving and other crafts great varieties, heat insulation, high mechanical strength, high heat resistance. Glass fiber (formerly known in English as, is a kind of inorganic fiber, whose monofilament diameter is from several microns to more than twenty microns, electrical insulating material and heat insulation material, poor wear resistance

Q:How to increase soundproof performance of houses(with glass wool)?

If you want to be simple, use sound barrier mats. If you want to be a completely soundproof environment, use sound absorption materials. If you use glass wool, you have to be aware of skin and respiratory tract infection.

Q:Rock wool board and glass?wool?board, which is more harmful to human body?

Rock wool board, rock wool board has more layers!

Q:What are the differences between the common and high temperature resistant glass wool boards?

The operating temperatures are different. The common boards can resist 300 degrees, the high temperature resistant one can resist 500 degrees.

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:Why is glass wool board used in portable house on the construction site?

Could it be that it is for fireproofing and prevention of burglary.

Q:What are the differences between glass asbestos and glass?reinforced?plastics?

Fiber glass contains glass?silk. Asbestos gauges are easy to be broken into pieces, you can not see glass in them. Gloves must be put on when holding or dealing with them to prevent them from sticking to your hands. Asbestos have advantages of acid and basic resistance, good insulation properity, and they are firm, almost unbreakable. Therefore, the industrial uses of it are more than 1,000. However, during the exploitation, processing and application of asbestos, there are dust nuisances. Asbestos are known to cause asbestosis of contacts, and now have been recognized in the world as carcinogen for humans.

Q:House wall insulation cotton: 12K75mm glass wool+ VR veneering. Is the VR veneering for aluminum foil board?

VR is white veneering. the type that used for steel structure has strong tensil force. Without laying iron wire mesh.