1. Off the heat of the good: According to the physical principles, the thermal conductivity of the gas is small, excellent heat insulation material has a lot of internal air pockets. The glass fiber cotton acupuncture has numerous small gas and irregular arrangement of fibers for excellent insulation materials, thermal conductivity 0.2 ~ 0.040kcal / mhr. Between c; 2. Do not burn: the main component of glass fiber silicide (more than 50%), with a non-flammable, no distortion, no embrittlement, high temperature of 7000C; 3. Good sound absorption: when the sonic invasion glass fiber cotton, of energy due to friction with the fibers of different sizes and cavitation, while large quantities inhaled. In general, the sound absorption rate are as high as 90%, which is good to prevent noise interference; 4. High insulation: glass fiber can withstand high temperatures, good mechanical properties and high chemical stability, is the best insulation material; 5. High corrosion resistance: Glass fiber is not afraid of acid, alkali, a long time will not reduce its functional properties; 6. Recovery is good: Glass fiber contains numerous fixed cavitation, excellent resilience. Not afraid of any shock and vibration, tensile strength was 1.0kg or more. 7. Low moisture absorption: moisture absorption rate is usually close to zero. 8. Soft light weight: Compared with other insulation materials, glass fiber needle felt quality of the lightest, most flexible, and its weight and vibration load if installed on the machine, reduce. 9. Simple construction: cut to size per customer.