TECHNICAL PROPERTIES - EROCK " FIBER MANUFACTURING



Because of the fiber structure stiffness and air existence and porosity, the "EROCK" products give the excellent sound absorption properties.

The value of noise reduction coefficient (NRC) of the "EROCK" products depends on the product density and the insulation thickness. Generally the range of NRC value is 0.85 – 1.00

 Comply with the requirement of ASTM C 423 – 02A, BS 3638