Density: Roll glass wool felt is coiled materials for large area coverage. It is not only thermal-insulating, but also can reduce shock and absorb sound,especially the medium and low frequency noise. It can help reduce the noise and improve the working environment.
Glass fiber cotton density is only 1/5 that of water. It is absolute hydrophobic, high temperature resistant with high tensile strength. Glass fiber insulation cotton has low thermal conductivity, good sound absorption, long fiber length, high tensile strength. it is widely used in building air conditioning insulation,decorative wall insulation, ceiling decoration, as well as chemical, electric power industry equipment insulation.
Density 2.4 ~ 2.7g / cm3 Glass fiber is used as reinforced materials in reinforcing plastic. the biggest feature is strong tensile strength. standard tensile strength is 6.3 ~ 6.9 g / d,in a wet state 5.4 ~ 5.8 g / d. Density 2.54. Good heat resistance. the tensile strength remains unchanged even if the temperature reaches as high as 300℃. It is high duty electrical insulation material. It is also used for thermal insulating and fireproof. it is only corroded by concentrated?alkaline,hydrofluoric?acid and concentrated phosphoric?acid.
glass wool density is generally between 16K ~ 32K, mainly used for acoustic and thermal insulation, but easily casues layering. Harmful substances comes out at the first heating. it is cheap. The density of the glass fiber acupuncture felt is 110~180kg/m3. It is mainly used for environmental protection, sound-absorbing. it has better fireproof property but it is more expensive.
