Zinc Anode 620 Datasheet | Must Read

While "620" in the context of zinc anodes most commonly refers to Zincanode 620

, a high-performance epoxy primer, it can also refer to physical dimensions in cathodic protection hardware. Below is an overview of the technical specifications and applications for both interpretations. Zincanode 620 (High-Solids Epoxy Primer) Zincanode 620

is a two-pack, zinc-rich epoxy primer designed for aggressive environments. It provides "galvanic protection" by ensuring the zinc in the paint film corrodes sacrificially to protect the underlying steel Key Technical Specifications Zinc Content : Over 80% zinc by weight in the dry film. Volume Solids Film Thickness

: Typical dry film thickness (DFT) of 75 microns, requiring a wet film thickness (WFT) of 120 microns. Theoretical Coverage /liter at 75 microns DFT. Heat Resistance 150 raised to the composed with power C (dry heat). Applications

: It is primarily used on offshore platforms, petrochemical plants, bridges, and marine facilities. It is often applied using airless spray with a tip size of 0.43–0.53 mm. 2. Physical Zinc Anodes (620mm Components)

In the field of cathodic protection for ship hulls and ballast tanks, "620" often refers to the Iron Foot Size or mounting length of the anode. Dimensional Specs Type ZE-1 & ZE-3 zinc anode 620 datasheet

: These sacrificial anodes often feature an "iron foot" (the internal steel strap used for welding) with a length of Composition : These anodes typically follow standards like MIL-DTL-18001L or ASTM B418, using 99.99% pure zinc. Performance Data : Approximately 780 Ah/kg. Consumption Rate : Roughly 11.2 kg/A-year. : -1.030 mV relative to Ag/AgCl in seawater. Summary Table: Zincanode 620 Primer Metallic Grey Mixing Ratio 3 parts Base to 1 part Hardener (by volume) Touch Dry (at 25 raised to the composed with power C 20 minutes Hard Dry (at 25 raised to the composed with power C VOC Content for the primer or the chemical composition required for marine-grade sacrificial anodes? Zinc Anode Rod

Zinc Content: Contains over 80% zinc by weight in the dry film. Volume Solids: 62% ± 2%.

Typical Film Thickness: 75 microns (Dry) / 120 microns (Wet).

Theoretical Coverage: Approximately 8.27 m²/litre at 75 microns DFT. Heat Resistance: Resists dry heat up to 150°C. Mixing Ratio: 3 parts Base to 1 part Hardener (by volume). Drying & Curing Times Performance varies by surface temperature: Temperature 15°C 25°C 35°C 45°C Application Guidelines

Surface Preparation: Best results require abrasive blast cleaning to a minimum standard of Sa 2.5 (ISO 8501-1) with a surface profile of 50–75 microns. While "620" in the context of zinc anodes

Methods: Recommended for application via airless spray, though brush or roller may be used for touch-ups and difficult shapes.

Compatibility: Complies with British Standard BS 4652 and can be top-coated with epoxy, urethane, or chlorinated rubber finishes. AkzoNobel Interpon 620

powder coating, or a specific sacrificial zinc anode used in cathodic protection? zincanode 620 - Berger Protective Coating [UAE]

1. The Energizer EN95 / NEDA 620 Battery: A standard 1.5V industrial Zinc-Carbon or Zinc Chloride battery (often used in low-drain devices like clocks or flashlights).
2. A Zinc Alloy (e.g., Zamak 6 or similar): While there isn't a standard "Zamak 620," the number might refer to a specific proprietary casting alloy or an electrode material code.

Below is a datasheet breakdown for the most likely candidate: the Energizer Industrial 620 (EN95) Zinc Battery, along with technical details on Zinc Anode composition in general.

Real World Power Output

A new Zinc Anode 620 (6.2 kg) will deliver: The Energizer EN95 / NEDA 620 Battery: A standard 1

• Initial Current Output: ~1.2 to 1.5 Amps (in seawater at 20°C, 100 ohm·cm resistivity)
• Total Lifetime Charge: 4,836 Amp-hours (6.2 kg × 780 A·hr/kg)
• Service Life (Theoretical): 4,836 Ah ÷ 1.2 A = 4,030 hours (approx. 5.5 months at peak output).
• In brackish water (higher resistivity), life extends, but output drops.

1. What is the "Zinc Anode 620"?

The term "620" typically denotes a Hull or Brace Anode weighing approximately 6.2 kg (13.66 lbs) or measuring roughly 620 mm in length depending on the manufacturer's code. However, the industry standard for the “620” profile most commonly refers to a trapezoidal or rectangular bar anode used predominantly on ship hulls, heat exchangers, and water box applications.

Standard Dimensions (Typical for 620 Profile):

• Length: 620 mm (24.4 inches)
• Height (Width): 100 mm (3.94 inches)
• Thickness (Base): 40 mm (1.57 inches)
• Thickness (Tip): 20 mm (0.79 inches)
• Weight: 6.2 kg (Nominal) / 13.7 lbs
• Insert: Galvanized steel core strap (25mm x 6mm)

Note: Always verify manufacturer drawings, as "620" may refer to length in millimeters for custom extrusions.

Discharge Characteristics (Typical)

• Impedance: High internal resistance compared to Alkaline.
• Performance: Best suited for low-drain, intermittent use (flashlights, radios).
• Cut-off Voltage: Typically 0.8V – 0.9V.

Note: Zinc-Carbon anodes degrade faster under heavy load than Alkaline anodes.

Alternate Manufacturer Variant (Small Equipment)

Some suppliers stock a 620g pendant anode:

• Weight: 0.62 kg (1.36 lbs)
• Length: 152 mm / Width: 38 mm – Used for bonding to propeller shafts or rudders.