This carbon cloth, model EDP-850 from CeTech, is designed for advanced electrochemical applications such as fuel cells and electrolyzers. Its dense woven structure provides a high specific surface area with abundant micropores on each fiber, enhancing active sites for catalytic reactions. The material exhibits excellent inherent hydrophilicity, eliminating the need for additional surface treatments, and features very low electrical resistance, which facilitates efficient charge transfer and product attachment. These properties make it suitable for use as a gas diffusion layer or electrode substrate in research and development settings. The standard sheet size is 20 cm × 20 cm, offering convenient handling for laboratory-scale experiments.