ZOLTEK PXFT carbonized felts are produced from 100% ZOLTEK OX felts; that are continuously carbonized and supplied in roll form. ZOLTEK PXFT carbon felts can be used in many applications, including: stationary energy storage batteries, high temperature furnace linings, acid gas mist eliminators and as a carbon composite materials. Customers can apply their own post treatments and the felt is easy to process into customer specific designs.

Felt Material Overview
Carbon Content95%
Fiber Diameter7-9 µm
Fiber Density~1.78 g/cc (0.064 lb/in3)
BET Surface Area~1 m2/g
Trace MetalsFe < 20 ppm, Na < 30 ppm, Ca < 20 ppm
Material OverviewPXFT FT-1750PXFT FT-1750PX35 FT1035-100PX35 FT1035-100PXFT FT-540PXFT FT-540PXFT-450PXFT-450PXFT FT-305PXFT FT-305PXFT FT-50PXFT FT-50
Width98 cm39 in98 cm39 in98 cm39 in98 cm39 in98 cm39 in80 cm31.5 in
Areal Weight1,750 g/m251.6 oz/yd21035 g/m230.5 oz/yd2540 g/m215.9 oz/yd2450 g/m213.3 oz/yd2305 g/m29.0 oz/yd250 g/m2 1.47 oz/yd2
Thickness16.5 mm0.65 in12.0 mm0.47 in6.0 mm0.24 in4.8 mm0.19 in4.0 mm 0.16 in1.0 mm0.039 in
Felt Bulk Density0.11 g/cc0.00397 lb/in30.09 g/cc0.00325 lb/in30.09 g/cc 0.00325 lb/in30.09 g/cc0.00325 lb/in30.08 g/cc 0.00289 lb/in30.05 g/cc0.0018 lb/in3
Roll Length45 m50 yds45 m50 yds45 m50 yds45 m50 yds80 m87 yds250 m275 yds
Electrical Resistivity2.2 Ω mm2.2 Ω mm6.3 Ω mm6.3 Ω mm3.9 Ω mm3.9 Ω mm4.0 Ω mm4.0 Ω mm5.8 Ω mm5.8 Ω mm66 Ω mm 66 Ω mm
Open Porosity94%94%95%95%95%95%95%95%96%96%97%97%
Tensile Strength in MD / XMD direction0.30 MPa / 0.30 MPa0.30 MPa / 0.30 MPa0.19 MPa / 0.34 MPa0.19 MPa / 0.34 MPa0.43 MPa / 0.41 MPa0.43 MPa / 0.41 MPa0.28 MPa / 0.48 MPa0.28 MPa / 0.48 MPa0.67 MPa / 0.36 MPa0.67 MPa / 0.36 MPa1.47 MPa / 0.51 MPa1.47 MPa / 0.51 MPa
Elongation in MD / XMD Direction18.6%/26.0%18.6%/26.0%41.5%/39.5%41.5%/39.5%19.3%/18.1%19.3%/18.1%18.5% / 18.3%18.5% / 18.3%13.2% / 16.0%13.2% / 16.0%7.9% / 25.5%7.9% / 25.5%