Zinc Anode 620 Datasheet -
Preserves oil platforms and subsea equipment.
Available with flat steel insert straps for welding, or slotted holes for bolt-on applications. Density: 7,140 kg/m³ ( 4. Applications and Environmental Constraints Primary Environments
Provides a protective potential window between -0.80V and -0.90V vs Ag/AgCl when coupled with structural steel.
Offers long-term recoatability and is compatible with most high-performance topcoats, such as epoxies and urethanes. 2. Technical Specifications Specification Details Volume Solids 62% ± 2% (per ASTM D2697) Typical Dry Film Thickness (DFT) 75 microns Theoretical Coverage 8.27 m²/liter at 75 microns DFT Mixing Ratio 3 parts Base : 1 part Hardener (by volume) VOC Content Approximately 330 g/L Finish & Color Matt, Metallic Grey 3. Application Guide zinc anode 620 datasheet
The 620 size classification balances high mass with a relatively low profile, making it highly versatile across multiple sectors: Marine Vessels
-1.05 Volts to -1.10 Volts vs. Ag/AgCl reference electrode.
If you have a specific datasheet or manufacturer in mind, I'd be happy to review it in more detail! Preserves oil platforms and subsea equipment
The core contains pre-drilled holes. It is secured using backing washers, nuts, and bolts. This allows for rapid replacement during dry-dock servicing. Critical Considerations
Choose zinc ONLY for saltwater/brackish water. Do not use zinc in low-temperature fresh water or in high-sulfide muds.
40 mm to 60 mm (Depending on operational lifespan profile) Weight Matrix Net Weight (Zinc Alloy): ~10.5 kg to 12.0 kg Gross Weight (With Core): ~11.5 kg to 13.5 kg Core Insert Specifications Material Type: Mild steel or galvanized steel strapping. preventing the electrochemical reaction entirely.
The Zincanode 620 stands out due to its high metallic zinc content and rapid curing capabilities.
💡 : A simple chart ranking metals by their "nobility" can help you select the right anode material for your vessel.
Inspect the 620 anode during scheduled dry-docking or dive inspections. It should be replaced when it has wasted away to 50% of its original volume or weight . If it looks completely untouched after a year in seawater, the electrical connection is likely broken or the zinc has passivated due to high iron impurities. 7. Environmental Suitability Note
Do not apply anti-fouling paint, primer, or topcoats to the surface of the zinc anode. Painting isolates the zinc from the seawater, preventing the electrochemical reaction entirely. Replacement Schedule