Sigracet 38 AA

Brand: SGL Carbon
Product Code: 1592035

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Sigracet 38 AA was discontinued and permanently replaced by Sigracet 36 AA. We are completely out of stock of this material.

Sigracet 38 AA is a non-woven carbon paper gas diffusion media that has no PTFE treatment.  It has a total thickness of 280 um (microns).  SGL AA is a great low-cost alternative to conventional woven carbon paper Gas Diffusion Layer (GDL) and Gas Diffusion Media materials.

The Sigracet Carbon Fiber Paper 38 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
Gas Diffusion Layer Properties
Material Type Carbon Fiber Paper
Thickness 280 microns +/- 30 microns
Areal Weight 75 +/- 10 g/m²
Electrical Resistivity (through plane) < 5 mΩcm² (milliohms cm²)
IP Pressure Drop 0.2 bar (at 1 MPa)
Substrate PTFE Treatment No PTFE Treatment Applied
Microporous Layer No Microporous Layer Applied

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