Zinc Anode 620 Datasheet -

Zincanode 620 is the industry standard for protecting heavy-duty steel assets, including:

: Requires abrasive blast cleaning to a minimum standard of Sa 2½ (ISO 8501-1) with a surface profile of 50–75 microns. Drying Times (at 25°C): Touch Dry : 20 minutes. Hard Dry : 6 hours. Overcoating Interval : Minimum 12 hours. Pot Life : 8 hours. Restrictions & Safety

620 mm (Anode body length excluding steel insert) Width (W): 100 mm to 150 mm (Tapered profile design)

Based on the review of the Zinc Anode 620 datasheet, we recommend:

To keep your hulls, tanks, and pipelines from dissolving, you need a sacrificial lamb—or in this case, a sacrificial metal. The zinc anode 620 datasheet

: Corrosion prevention for the external bottoms of grounded tanks.

Because of its high zinc load, this primer is typically used for: Offshore & Onshore Platforms:

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

: [CITE: 15†L16]

This is the most common installation error. Coating a sacrificial anode with anti-fouling paint or primer insulates the zinc from the seawater, completely neutralizing its ability to provide cathodic protection.

Calculate you need based on your vessel's surface area.

Ensure the mounting studs are wire-brushed and clean before bolting. Replacement Schedule

To ensure active potential and prevent passivation, the Type 620 alloy must contain specific trace elements. Impurities like iron and copper are strictly limited to prevent the formation of a passive oxide film. Zincanode 620 is the industry standard for protecting

| Property | Zinc Anode 620 | Aluminum Anode (Al/Zn/In) | Magnesium Anode | |------------------------|------------------------|----------------------------|-----------------------| | (A·hr/kg) | 780 | 2,500 | 1,200 | | Driving Voltage | 0.25V (Low) | 0.30V (Moderate) | 0.70V (High) | | Best For | Seawater, Warm water | Seawater, Mud (Cost effective) | Soil, Fresh water | | Weight for 620 size | 6.2 kg | 2.4 kg (Same volume) | 1.8 kg (Same volume) |

Protecting steel gas and water pipelines in wet soil. Storage Tanks: Internal protection of water tanks.

Inspect anodes during regular maintenance cycles. Replace the Zinc Anode 620 once it reaches 75% consumption by weight to prevent a drop in protective voltage.

It serves as an effective repair coating for existing inorganic zinc-rich systems. Application Tips To get the most out of Zincanode 620 , keep these datasheet highlights in mind: Atmosphere: Best suited for C4 and C5 (highly corrosive) environments. System Compatibility: Overcoating Interval : Minimum 12 hours

To meet (the gold standard for zinc anodes), the alloy must adhere to these strict percentages: Zinc (Zn): Remainder (approx. 99.3%) Aluminum (Al): 0.10% – 0.50% Cadmium (Cd): 0.025% – 0.07% Iron (Fe): 0.005% Max Lead (Pb): 0.006% Max Copper (Cu): 0.005% Max ⚡ Performance Characteristics

: Achieves a full cure within 6–8 hours at normal temperatures. Zincanode 620 | Epoxy Zinc Rich Primer