Sigracet 28 BC

Brand: SGL Carbon
Product Code: 1592032

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From $15.00

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Sigracet 28 BC is a non-woven carbon paper with a Microporous Layer (MPL) that has been PTFE treated to 5 wt%.  It has a total thickness of 235 um (microns).  SGL 28 BC is a great low-cost alternative to conventional woven carbon paper Gas Diffusion Layer (GDL) materials.

The Sigracet Carbon Fiber Paper 28 Series is intended to combine the required production robustness and the excellent performance properties.  Stack developers and assemblers are benefiting from the following greatly improved characteristics:

  • Greatly improved homogeneity inter-lot and intra-lot.  The overall variability has been shown to be better than +/- 10% (2 sigma)
  • Greatly improved surface flatness
  • Greatly reduced occurrence of faulty spots on a roll
  • Best performance under various operating conditions

Sigracet 28 BC has a current lead time of approximately 3 weeks.

Gas Diffusion Layer Properties
Material Type Carbon Fiber Paper
Thickness 235 microns +/- 25 microns
Air Permeability (s) 0.5 - 0.7 cm³/(cm²*s)
Areal Weight 105 +/- 10 g/m²
Porosity (%) 80%
Compressibility ca. 11% (at 1 MPa)
Electrical Resistivity (through plane) < 11 mΩcm² (milliohms cm²)
IP Pressure Drop 0.9 bar (at 1 MPa)
PTFE Treatment 5%
Microporous Layer Yes, on one side

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