rasmaterial.com — Electrode substrates. The kind your stack team actually approves.
Nickel mesh
that ships with certs, not excuses.
We weave nickel mesh on our own floor — not bought from a trading company and resold. Three product families, one material: pure nickel. Every roll ships with an EN 10204 3.1 Mill Test Certificate. ISO 9001:2015 certified manufacturing. Alkaline electrolysis. Chlor-alkali. Fuel cells. If your cell runs hot KOH and needs an electrode substrate that doesn't drift after 40,000 hours, you're in the right place.
Years of doing nickel mesh. Nothing else.
Trusted by electrolyzer OEMs, catalyst houses and research labs
Core Catalogue
Three families, one metal.
FIELD DATA
6,800 h
Median cell life extension
WHERE OUR MESH RUNS
Engineered for the cells that make hydrogen.
Every roll leaves our workshop tested for weave uniformity, open area and surface finish the three variables that decide bubble detachment, ohmic loss and long-term corrosion in alkaline duty.
What is Nickel Mesh?
Nickel mesh is a woven or knitted pure-nickel electrode material used as the catalyst support substrate, porous transport layer and current collector in alkaline water electrolyzers, chlor-alkali membrane cells and fuel cells. Hydromesh — the nickel mesh brand of RAS Thermal Co., Ltd. — weaves this mesh on its own floor: 18 rapier looms, 6 knitting machines and 14 wire-drawing lines, running Ni200, Ni201 and N6 grades under ISO 9001:2015 process control, with an EN 10204 3.1 Mill Test Certificate on every shipment.
Key facts
Nickel purity
≥99.6% (Ni200), min 99.0% (Ni201 low-carbon)
Electrode lifetime
60,000+ hours in 30% KOH with Ni201 substrates
Track record
200+ customers across 42 countries since 2011
Quality docs
100% of shipments include EN 10204 3.1 MTC
Related products & resources
Selection guide
The table below compares the options most often quoted for nickel mesh enquiries.
| Product family | Typical specification | Primary role in the cell |
|---|---|---|
| Woven nickel mesh | 30-60 mesh, 0.19-0.30 mm wire, plain / twill weave | Catalyst support substrate for AWE electrodes |
| Knitted nickel mesh | 660-1,150 g/m² packing density, 85-98% porosity | Porous transport layer under 5-15 bar stack compression |
| Nickel wire (Ni200/Ni201) | 0.025-8.0 mm diameter, annealed temper | Current collector lead wire for electrode assemblies |
How to request a quote
- Step 1
Send your specification — product family, grade (Ni200/Ni201/N6), mesh count or packing density, wire diameter, quantity and certification standard.
- Step 2
Our applications team reviews the requirement and replies within one business day — within 24 hours on working days — with availability, lead time and pricing.
- Step 3
Confirm the proforma invoice; a sample Mill Test Certificate (EN 10204 3.1) is included with the quote, and a free 100×100 mm sample is available for standard mesh specifications.
- Step 4
Production, inspection and shipment proceed with the full documentation package — 100% of shipments include the lot-specific MTC.
Certification & traceability
Manufacturing is ISO 9001:2015 certified, and 100% of shipments include an EN 10204 3.1 Mill Test Certificate — OES chemistry, laser micrometer wire trace, optical mesh count and ASTM E8 tensile results — with a traceable heat number on every roll. Technical enquiries receive a substantive reply from a named materials engineer within one business day (within 24 hours on working days), and a sample MTC is included with every quote so your quality team can verify the documentation format up front.
Frequently Asked Questions (FAQ)
What is Hydromesh?
Hydromesh is the nickel mesh and wire brand of RAS Thermal Co., Ltd., a B2B manufacturer of woven nickel mesh, knitted nickel mesh and pure nickel wire for alkaline electrolyzers, chlor-alkali cells and fuel cells. Manufacturing is ISO 9001:2015 certified, and the company has supplied electrode material to 42 countries since 2011.
Which nickel mesh products does RAS manufacture?
Three product families, one material — pure nickel: woven mesh (30-60 mesh standard, custom 20-400) as the catalyst support substrate, knitted mesh (660-1,150 g/m², 85-98% porosity) as the porous transport layer, and nickel wire (0.025-8.0 mm, Ni200/Ni201/N6) as current collector lead wire. Every roll ships with an EN 10204 3.1 Mill Test Certificate.
How long do nickel mesh electrodes last in alkaline electrolyzers?
With Ni201 low-carbon grade (0.02% C max) and electropolished finish, electrode substrates consistently exceed 60,000 operating hours in 25-30% KOH at 80-90°C. Standard Ni200 develops grain-boundary carbide attack in the same duty and typically fails at 20,000-50,000 hours.
How do I get a quote or a free sample?
Send your cell geometry, current density and electrolyte chemistry through the contact form. The applications team returns a matched weave, wire diameter and open-area recommendation within one business day — within 24 hours on working days — with a sample Mill Test Certificate; a free 100×100 mm sample is available for standard mesh specifications.
Standards & references
ASTM International · International Organization for Standardization
Page last updated: 2026-09-28