Rigid felt (Carbon fiber insulation)


We developed “Insulation” applied with carbon fiber web and needle punching technology, have a strong confidence for our products in it’s long life time and excellent thermal insulation due to using highly qualified carbon fiber raw materials.

We are faithfully meeting to the customers requirements for the insulation components of CZ Si-Growing furnace.

– Manufacturing process



Unit value
Bulk density g/cc 1.3 – 1.7
Tensile strength Mpa 120 – 150
Flexural Strength Mpa 170 – 200
Thermal Conductivity W/mK 5 – 10
C.T.E μm/K 1 – 2
Impurity ppm 1 – 100


-Dimension : Max. Diameter 1500mm x Height 2000 mm