Zinc Anode 620 Datasheet Jun 2026

I couldn’t find an official or universal datasheet for a because that part number isn't a standard industry designation across major marine or cathodic protection brands (e.g., Martyr, Cambrian, MG Duff, Galvotec).

recommends installing plates on the bottom of the hull, specifically between the transom and the rear third of the vessel. Are you planning a haul-out or scheduled maintenance?

The electrochemical profile defines how effectively the anode drives current to protect the target structure and how fast it consumes itself.

The "620" designation typically refers to a specific weight or size class in the marine industry, often weighing approximately 10–12 lbs (4.5–5.5 kg) depending on the specific manufacturer (e.g., Martyr, Camp, or Tecnoseal). Physical Dimensions (Standard) 12 inches (305 mm) Width: 3 inches (76 mm) Thickness: 1.25 inches (32 mm) Bolt Centers: 6 inches (152 mm) — Common for "620" series Weight: ~11.5 lbs (Zinc alloy) Chemical Composition zinc anode 620 datasheet

The 620 anode works via . It possesses a lower (more negative) electrochemical potential than the steel it protects.

A Zinc Anode 620 typically conforms to stringent national and international standards, including , GB/T 4950-2021 , and MIL-DTL-18001L , ensuring consistent, high-quality performance. The table below details the typical specifications for the two most relevant anode models in the ZE Series.

While "620" is not a universal standard code, it is a common identifier used by several major manufacturers for a specific family of large-format, high-performance sacrificial anodes. This document consolidates and synthesizes technical data from leading industry sources to provide a comprehensive reference. I couldn’t find an official or universal datasheet

Zinc anodes are optimal for . If your vessel operates primarily in brackish water or freshwater, a 620 zinc anode will quickly form an insulating zinc oxide crust, rendering it inactive. For freshwater or brackish applications, consult an engineering datasheet for aluminum or magnesium alternatives, which offer higher driving potentials. If you need help choosing the right anode, tell me:

: 75 microns Dry Film Thickness (DFT) / 120 microns Wet Film Thickness (WFT). Theoretical Coverage : Approximately 8.27 m2m squared /liter at 75 microns DFT. Finish & Color : Metallic Grey with a matt finish. VOC Content : 330 g/liter. Application & Performance unopened containers in cool

Typically 12 - 18 months from the date of manufacture if stored properly in original, unopened containers in cool, dry, and shaded conditions.

| Parameter | Typical value | |-----------|----------------| | Weight | ~0.8–1.2 kg | | Length | 152 mm (6”) | | Width | 51 mm (2”) | | Thickness | 25–32 mm | | Mounting holes | 2 (countersunk) | | Alloy | UNS Z33521 (MIL-A-18001K) | | Capacity | ~780 A·h/kg |

: Approximately -1.10 Volts relative to a Cu/CuSO4 reference electrode.

The or hole spacing of your existing mounting studs

Cathodic protection prevents costly galvanic corrosion on marine vessels, pipelines, and underwater infrastructure. Sacrificial zinc anodes corrode in place of more valuable structural metals. The is an industry-standard component designed for highly efficient cathodic protection. Technical Specifications and Dimensions