MMO · Platinized Titanium · Specialty Coatings · Custom Assemblies
Define the anodic reaction, electrolyte and impurities, current-duty basis, coating system, design-life assumptions, active area, substrate geometry, masking, connection, tests and documents before comparing quotations.
Before requesting a quote: name the reaction and operating window—not only the industry. “MMO anode,” “high coating,” “long life” or a current-density number without an area basis does not define a comparable product.
Coating Families
The families below support engineering review. Exact composition, loading basis, active area, qualification and service conditions are confirmed for each order.
Specify: Target reaction · Chloride range · Current-duty basis · Loading definition
Often reviewed for chlorine-evolution service, subject to exact electrolyte, impurities, pH, temperature, mass transfer, current density and life requirements.
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Specify: Target reaction · Oxygen-evolution duty · Electrolyte · Operating potential
Often reviewed for oxygen-evolution and selected electrochemical duties; composition and loading must follow the actual process window and qualification plan.
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Specify: Pt definition · Active area · Substrate · Potential/current duty
Pt/Ti can be reviewed for selected processes, but coating basis, porosity/coverage, electrolyte, polarity and wear acceptance must be explicitly defined.
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Specify: Coating system · Reaction · Hazards · Qualification · Disposal
PbO₂ or other specialty systems require process-specific electrochemical validation plus material, worker, environmental and end-of-life compliance review.
Review this coating family →Anode Forms
Substrate shape changes active area, current distribution, hydraulic access, mechanical support, connection design, masking and maintenance.
Specify: Expanded/woven geometry · Strand/opening · Active sides · Frame
Coated area, masking, current feed, support and process fit are confirmed with the order drawing.
Specify: L × W × T · One/two-side coating · Masking · Tabs
Coated area, masking, current feed, support and process fit are confirmed with the order drawing.
Specify: OD · Length · Wall · End closure · Connection
Coated area, masking, current feed, support and process fit are confirmed with the order drawing.
Specify: Diameter · Length · Coated zone · Thread/lead
Coated area, masking, current feed, support and process fit are confirmed with the order drawing.
Specify: Width · Thickness · Length · Spacing · Feeder
Coated area, masking, current feed, support and process fit are confirmed with the order drawing.
Specify: Diameter · Length · Coil/form · Termination
Coated area, masking, current feed, support and process fit are confirmed with the order drawing.
Specify: Profile · Active face · Edge mask · Fixture
Coated area, masking, current feed, support and process fit are confirmed with the order drawing.
Specify: Drawing · Coating map · Assembly · Test plan
Coated area, masking, current feed, support and process fit are confirmed with the order drawing.
A basket typically carries soluble anode material; an MMO or Pt/Ti coated titanium anode is usually an insoluble electrode. Review titanium anode baskets →
Solution Selection Guide
Target anodic reaction, desired product and unwanted side reactions.
Full chemistry, impurities, pH, temperature, pressure and flow/mass transfer.
Current/voltage range, current-density area basis, duty cycle and polarity.
Operating hours, throughput or charge basis, shutdowns, cleaning and failure criteria.
Active area, one/two-side coating, masks, spacing, support and hydraulics.
Current feed, cable/busbar, sealed zones, tests, reports and traceability.
Process Review
The route is confirmed from the order-specific substrate, fabrication, coating map, connection, qualification and document requirements.
01Verify Grade/specification, heat/lot, geometry, welds, coated zones and masks.
02Control the approved cleaning, roughening/etching, handling and time to coating.
03Control batch identity, composition/load definition, cycles, active area and samples.
04Verify geometry, coated/masked zones, connection, ordered coating evidence and documents.
Applications
Define feedwater/brine chemistry, chloride, impurities, temperature, flow, production target, current duty, cell gap, cleaning and system test basis.
Review the application context →
State the target reaction or contaminant, full matrix, mass transfer, current/energy basis, by-products, electrode spacing and treatment-performance owner.
Review the application context →Define structure, electrolyte/soil/water, protection criteria, design current, anode-bed geometry, cable/connection, backfill, monitoring and project standard.
Review the application context →Specify electrolyte and metals, reaction, impurities, temperature, current distribution, spacing, product-quality target, cleaning and maintenance.
Review the application context →Inside HELE Titanium
See the substrate preparation, coating, assembly, inspection and handling environment for titanium anodes. Order-specific capability and acceptance are confirmed separately.
Purchase Guard
Align reaction, chemistry, electrical-duty basis, coating definition, active/masked area, substrate, connection, design-life assumptions, qualification, release evidence, maintenance and commercial scope before order release.
FAQ
Provide the target anodic reaction, complete electrolyte chemistry and impurities, pH, temperature, pressure/flow, current and voltage range, duty cycle, polarity conditions, design life basis, active area definition, coating family or performance requirement, substrate form, coated/masked zones, connection, quantity, tests, documents and drawing.
Usually not in industrial electrochemistry. Titanium commonly serves as a valve-metal substrate and the active surface is an MMO, platinum or another engineered coating. The order must identify the active coating, reaction and coated area; bare titanium should not be assumed to perform as the intended anode.
They are different coating families with different reaction, electrolyte, potential, wear and process behavior. Ru-Ir systems are often reviewed for chlorine evolution, Ir-Ta or Ir-based systems for oxygen-evolution duties, and Pt/Ti for selected electrochemical services, but final selection requires exact operating data and qualification.
No. Thickness, total or precious-metal loading, application mass, and surface elemental composition measured by XRF are different characteristics. The RFQ must define the metric, units, basis, method, locations, sampling and acceptance.
No. Life depends on reaction, electrolyte and impurities, pH, temperature, current density basis, voltage and polarity, mass transfer, shutdowns, connection, substrate/coating quality, cleaning and operating control. State a design-life basis and agreed qualification or accelerated test instead of an isolated year claim.
No. Recoating requires inspection of substrate thickness, distortion, cracks, welds, connection, contamination, prior coating removal and dimensional suitability. Reuse or replacement criteria must be agreed before recoating.
Unknown items can remain open for review. Mark mandatory performance requirements and permitted supplier proposals before quotation.