fiberglass needle mat is a good thermal and voice insulation material A.Density toralence +15%-10% B. Heat Resisting 700C degree.Softening temperature: 850 C C.High tensile strength: 350kg/mm ,Modules of elasticity:7300kg/mm ,Elongation at 25 C:4.8%,Flexible: conforms to irregular surfaced D.Corrosion Properties:does not absorb water,rot,mildew,deteriorate or decay. E. Application:Applications Muffler and exhaust insulation ,Automotive catalytic converter, flooring and front dash insulation ,Removable pads,Ship turbines ,Marine, industrial, and process piping ,Power generating equipment,Industrial furnaces and ovens ,Filtration ,Gaskets for air conditioning