Whole-electrode recoating
For suitable monopolar electrodes with serviceable mesh, the frame and backplate are repaired as required before the electrode assembly is prepared and recoated.
Electrolyzer maintenance service
Electrolyzer Cell Repair and Membrane Gap Retrofit
Metatecno supports chlor-alkali plants with electrolyzer cell inspection, repair, sealing surface restoration and membrane gap retrofit. Work scope is confirmed by photos, drawings, service history, medium and operating conditions before quotation.Three repair approaches
The repair route is selected after incoming inspection. Cell structure, mesh condition, corrosion, sealing surfaces and the project objective determine whether the mesh remains assembled or is removed.
Mesh removal and recoating
For bipolar cells, damaged mesh or corrosion, the mesh is removed for separate repair or coating before controlled reassembly.
Anode coating and cathode retrofit
For suitable structures, the anode can be recoated while the cathode receives reviewed elastic elements and face mesh for a membrane-gap retrofit.
DD350, UHDE, INEOS, Asahi Kasei, Bluestar and Chlorine Engineers names are used only to identify compatibility requirements. They do not imply OEM affiliation, endorsement or authorization.
Nine-step repair workflow
Each step is confirmed against the approved repair scope. Photos show representative workshop operations, not guaranteed results or a universal specification.
01. Incoming inspectionRecord cell condition, damage and required work.
02. DisassemblySeparate mesh or components when the approved route requires it.
03. Repair and grindingRestore approved frame, plate and sealing-surface areas.
04. Cleaning and leak checkClean, inspect and check the repaired structure.
05. Surface preparationPrepare anode and cathode mesh for the confirmed coating route.
06. CoatingApply and process the coating within the agreed work scope.
07. InspectionCarry out the specified coating and component checks.
08. Reassembly or retrofitWeld the approved mesh and complete the confirmed cathode work.
09. Packing and releaseComplete final review, protection and shipment preparation.
Repair control points
Acceptance requirements are project-specific. The quotation and signed order define dimensions, materials, coating scope, checks, packing and documents.
Condition record
Incoming photos and inspection findings establish the repair baseline.
Sealing surfaces
Approved contact surfaces and connection areas are checked before assembly.
Coating scope
Preparation, coating and inspection follow the confirmed work instruction.
Final release
Visual, dimensional, leak and packing checks follow the agreed inspection plan.
Service scope
Service scope
This service is intended for ion membrane electrolyzer maintenance projects where used cells require evaluation before reuse, repair or retrofit.Cell inspection
We review visible damage, sealing surfaces, frame condition and connection areas before proposing the repair method.
Sealing surface restoration
The work focuses on gasket seats, frame contact surfaces and areas that influence sealing compression.
Membrane gap retrofit
For suitable cells, membrane gap retrofit is reviewed according to structure, plate condition and operation target.
Coating and frame work
Coating repair, frame palladium plating and titanium-palladium frame retrofit are evaluated project by project.
Applicable platforms
Applicable to DD350, UHDE, INEOS, Asahi Kasei, Bluestar, Chlorine Engineers and other platforms after verification.
Quotation basis
Quotation requires photos, drawings, quantity, platform, damage position, medium, temperature, pressure and service history.
Repair and retrofit photos
Repair and retrofit photos
The photos show electrolyzer cell frames, sealing surfaces and detail areas used for technical evaluation.Technician checking the sealing surface of an electrolyzer cell
Ion membrane electrolyzer cell frame before technical evaluation
Surface inspection for membrane gap retrofit of electrolyzer cell
Nozzle and connection detail on electrolyzer cell
Close inspection of sealing and contact surfaces
Evaluation process
Evaluation process
Initial review
Review of photos, drawings, used samples and platform information.
Repair plan
Confirmation of work scope, materials, control points and delivery sequence.
Controlled repair
Execution of approved repair work and checks related to sealing and assembly.
Final check
Visual review, critical dimensions and packaging inspection before shipment.
Request repair review