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F-10100 Cation Exchange Membrane

Price range: 85.00 € through 495.00 €

Non-reinforced, 100 µm fluorinated cation exchange membrane on PET backing — low resistance, high selectivity, and high chemical and oxidative stability for demanding electrochemical applications.

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About the product

The F-10100 is a 100 µm non-reinforced cation exchange membrane from Fumatech, built for electrochemical processes that require high oxidative stability, such as redox flow batteries and PEM water electrolysis. It combines low area resistance with high mechanical stability and high selectivity, making it a reliable choice wherever long-term chemical and oxidative durability is critical.

Key features:

Area resistance below 1.0 Ω cm² (in 0.5 M H₂SO₄)
Selectivity exceeding 90%
Dimensional swelling below 18% in water
Young’s modulus above 350 MPa, tensile strength above 15 MPa, elongation at break above 200%
Burst strength above 3 bar
Delivered dry and non-activated, in H⁺ form, on a colorless rigid PET backing foil

Delivery & pretreatment: Supplied as a transparent, slightly brown foil on a PET backing layer, in dry, non-activated H⁺ form. For redox flow battery applications in acidic environments, the membrane can be activated in-situ in the cell without any pretreatment. For immediate high performance and lowest resistance, it can optionally be pretreated in 10 wt% H₂SO₄ at 70–90 °C for at least 6 hours, followed by thorough rinsing in demineralized water.

Main application area: Redox flow batteries, PEM water electrolysis, and other electrochemical processes requiring oxidatively stable cation exchange membranes.

To suit your specific research needs, we provide membranes in several formats:

Standard Sheets: 12.5 x 12.5 cm and 20 x 30 cm sheets for custom cutting.
Pre-Cut for Our Cells:
- Cut w. alignment holes: For all our single cell test hardware.
- Cut for X-Stack: Perfectly sized for our X-Stack electrolyser.
- Cut for S-Stack: Designed for our S-Stack flow battery.
- Cut with manifold holes: For our 3 and 4-compartment X-Cell.

For other dimensions or specific cut-outs, please make an inquiry. We are happy to provide custom solutions for your project.

Property	Unit	F-10100 Value
Membrane type	—	Cation exchange membrane
Appearance	—	Transparent / slightly brown
Backing foil	—	PET
Reinforcement	—	None
Counter ion	—	H⁺ form
Delivery form	—	Dry, non-activated
Thickness (dry)	µm	90–110
Weight per unit area	g m⁻²	180–220
Area resistance in 0.5 M H₂SO₄	Ω cm²	< 1.0
Selectivity (0.1 / 0.5 mol/kg KCl at 25 °C)	%	> 90
Dimensional swelling in H₂O at 25 °C	%	< 18
Young’s modulus at 23 °C / 50% r.h.	MPa	> 350
Tensile strength at 23 °C / 50% r.h.	MPa	> 15
Elongation at break at 23 °C / 50% r.h.	%	> 200
Burst test in water at 25 °C	bar	> 3

Technical Datasheet fumasep F-10100

Support & Inquiry

Do you have specific questions or would you like help in selection and configuration of our product:

F-10100 Cation Exchange Membrane

You are very welcome to contact us in the form here. We are ready to support you in selecting the best solutions for your R&D.

Always include as much information as you can about your project, what type of chemistry you are planning to use, what is the purpose of the equipment you are interested in. That will make it much easier for us to guide you towards the best solution for your project.