Precision-cut gaskets for electrodialysis stacks in PTFE, EPDM, and Viton. Available for 3- and 4-compartment cells with either flat or flow-field current collectors, our gaskets define the flow channels for diluate and concentrate streams, provide leak-free sealing, and maintain accurate compartment spacing for reproducible ion separation research. Custom cuts available on request.
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Ensure a leak-free, well-defined flow path in your electrodialysis stack with precision-cut gaskets designed for 3- and 4-compartment cell architectures. Available in PTFE, EPDM, and Viton with multiple thicknesses, our gaskets provide the reliable sealing and geometric precision necessary for reproducible ion separation, BMED, RED, and EDI research.
In an electrodialysis stack, gaskets do three jobs at once: they create the flow channels for diluate and concentrate streams, they set the compartment thickness (which directly affects mass transport and ohmic resistance), and they prevent external and internal leakage. A poor seal leads to cross-contamination between streams, inaccurate results, membrane damage, and in some cases hardware damage. Precision-cut gaskets with consistent thickness and clean flow-channel geometry are therefore as important as the membranes themselves.
Precision-cut gasket set for 3- and 4-compartment electrodialysis cells built around flat current collectors. Defines the diluate, concentrate, and electrode-rinse flow channels with consistent thickness and clean edges for reproducible transport measurements.
Gasket set optimized for 3- and 4-compartment cells using flow-field current collectors. Matched geometry ensures proper sealing against the flow-field pattern while maintaining defined compartment thickness.
Our gaskets are designed to integrate with our full electrodialysis cell range:
For non-standard cell architectures, custom compartment counts, or specialized spacer patterns, we cut gaskets to your exact specifications. Send us your stack drawing, spacer dimensions, or flow-channel layout and we’ll prepare a custom gasket set — useful for:
Yes. In modular electrodialysis cells, the gasket geometry defines the flow path, the active area, and the channel (compartment) thickness. Channel thickness directly sets the ohmic resistance and mass-transport boundary layer, so choosing the right gasket is as important as choosing the right membrane.
Yes — send us the spacer dimensions, flow pattern, and material thickness, and we’ll cut matching gaskets to your geometry.
Flat current collectors require a simpler gasket geometry because the flow channel is defined entirely by the gasket cutout. Flow-field current collectors have machined channels in the collector plate itself, so the gasket’s role is to seal around the flow-field pattern while defining the compartment perimeter. The two gasket sets are not interchangeable.
PTFE for maximum chemical resistance and when you need the tightest thickness control (acid recovery, strong oxidizers, precision transport studies). Viton (FKM) as the default for general ED research — balances sealing performance with chemical resistance across a broad range of electrolytes. EPDM when you want easy compressibility and routine reassembly in alkaline or neutral systems where aggressive chemistry isn’t a concern.
Significantly. Gasket thickness sets the compartment (channel) thickness, which directly controls ohmic resistance (thicker = higher resistance) and concentration boundary layer behavior (thicker = more mass-transport resistance). For reproducible ED research, use the same gasket stack from experiment to experiment and document the thickness in your method.
Yes — both our standard 3/4-compartment gasket sets and custom cuts work for bipolar membrane electrodialysis (BMED) research, especially on the Y-Cell and 4-compartment X-Cell configurations.
