Zinc Anode 620 Datasheet

Zincanode 620 is a high-performance, two-pack epoxy zinc-rich primer specifically engineered to provide superior cathodic and barrier protection for steel in aggressive environments. www.bergerarabiapc.com Technical Specifications The following data reflects the standard Berger Zincanode 620 Technical Data Sheet Zinc Content

: Contains over 80% zinc by weight in the dry film to ensure effective galvanic protection. Volume Solids : Approximately Dry Film Thickness (DFT)

: Typically 75 microns (can range between 50 and 75 microns). Wet Film Thickness (WFT) : 120 microns. Theoretical Coverage /liter at 75 microns DFT. Finish & Color : Matt finish in Metallic Grey. Heat Resistance : Resists dry heat up to 150°C. www.bergerarabiapc.com Key Applications

Zincanode 620 is designed for steelwork in highly corrosive "C5" environments, including: Marine & Offshore

: Ship superstructures, offshore platforms, jetties, and port facilities. Industrial Infrastructure : Pipelines, bridges, and petrochemical plants. Maintenance

: Often used as a repair coating for inorganic zinc-rich primers. www.bergerarabiapc.com Application Details Mixing Ratio : 3 parts Base to 1 part Hardener (by volume). Drying Times (at 25°C) : 20 minutes. : 6 hours. : 8 hours. Surface Preparation

: Requires abrasive blast cleaning to a minimum standard of Sa 2½ (ISO 8501-1:1988) for optimal adhesion. Application Method

: Airless spray is recommended, though brushes or rollers may be used for touch-ups or complex shapes. www.bergerarabiapc.com Limitations

: Not recommended for immersion in acidic or alkaline conditions unless a suitable topcoat is applied. UV Exposure

: Like most epoxy products, it may chalk or discolor when exposed to direct sunlight. www.bergerarabiapc.com comparison between Zincanode 620 and other zinc-rich primers like the zincanode 620 - Berger Protective Coating [UAE]

The Zincanode 620 is a high-solids, two-pack epoxy zinc-rich primer designed for superior corrosion protection of steel in aggressive environments. It acts as a sacrificial layer, providing "galvanic protection" to the steel substrate. Product Overview

Primary Use: Anti-corrosive primer for marine and port facilities, offshore structures, petrochemical plants, and piping.

Compliance: Meets British Standard BS 4652 for zinc-rich primers and ISO 12944 Part 2 for environments up to C5.

Key Feature: Contains over 80% zinc by weight in the dry film to ensure long-term cathodic protection. Physical & Technical Data Specification Volume Solids ±plus or minus Finish Matt, Metallic Grey Typical DFT 75 Microns (can range 50–75) Wet Film Thickness 120 Microns Theoretical Coverage m2m squared /liter @ 75 microns VOC Content 330 gms/liter Heat Resistance Up to 150°C (Dry Heat) Berger Singapore Application Details Mixing Ratio: 3 parts Base to 1 part Hardener by volume.

Surface Prep: 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

Environment: Not recommended for immersion in acidic or alkaline conditions without a suitable topcoat.

Weathering: Like most epoxies, it will chalk and discolor if exposed to direct sunlight without a topcoat.

Safety: Ensure adequate ventilation and wear protective gear (goggles, gloves). The product is flammable with a flash point of 20°C. Zincanode 620 | Epoxy Zinc Rich Primer

is a two-component, high-solids epoxy primer. It provides "galvanic protection" by acting as a sacrificial layer; if the coating is scratched, the high concentration of zinc dust corrodes instead of the underlying steel.

Key Composition: Contains over 80% zinc by weight in the dry film.

Compliance: Meets British standard BS 4652 and performance requirements for BS 5493.

Industrial Use: Commonly used on offshore structures, petrochemical plants, pipelines, and bridges. Technical Data & Specifications

The following technical metrics are standard for the Zincanode 620 Datasheet: Specification Volume Solids Typical Dry Film Thickness (DFT) 75 microns Theoretical Coverage m2m squared /litre @ 75 microns DFT Finish & Color Matt, Metallic Grey Mixing Ratio 3 parts Base : 1 part Hardener (by volume) Heat Resistance Up to 150°C (Dry heat) Application Guidelines

Surface Preparation: Requires abrasive blast cleaning to a minimum standard of Sa 2.5 (ISO 8501-1:1988) with a surface profile between 50 and 75 microns.

Method: Best applied via airless spray (Tip size: 0.43–0.53 mm). Brushes or rollers are generally reserved for touch-ups or small areas. Drying Times (at 25°C): Touch Dry: 20 minutes. Hard Dry: 6 hours. Pot Life: 8 hours. Sacrificial Anode Alternative: Model 620

While "620" is primarily a coating brand, some maritime suppliers use similar numbering for solid anodes. For example:

Marine Pencil Anodes: Some Bukh engine pencil anodes use part numbers like 2-62050 for small engine-cooling protection.

Dimensions: Large hull anodes, such as the NAL 8 model, can have lengths of 620mm and weigh approximately 8kg. Go to product viewer dialog for this item. Zinc Pencil Anode

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

, 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

: 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

Zincanode 620 is a high-performance, two-pack epoxy zinc-rich primer specifically engineered for superior corrosion protection of steel in aggressive environments. It functions as a sacrificial primer, providing galvanic protection even if the coating film is damaged. Core Technical Specifications

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

Typical Film Thickness: 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

Common Uses: Designed for offshore structures, marine and port facilities, petrochemical plants, pipelines, and bridges.

Environmental Suitability: Suitable for up to C5 environments (very high corrosivity) as per ISO 12944 Part 2. Temperature Resistance: Offers dry heat resistance up to 150∘C150 raised to the composed with power cap C

Application Methods: Recommended for airless spray, though brush or roller may be used for touch-ups or complex shapes.

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

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.

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]

The Zincanode 620 is a high-performance, two-part epoxy zinc-rich primer specifically engineered to provide superior cathodic protection for steel structures in highly corrosive environments. Often categorized by the keyword "zinc anode 620," this product functions as a "sacrificial" coating, protecting the underlying steel from rust even if the film is damaged.

Below is a detailed technical overview based on the standard Berger Zincanode 620 datasheet. 1. Key Performance Characteristics

The Zincanode 620 stands out due to its high metallic zinc content and rapid curing capabilities.

Zinc Loading: Contains more than 80% zinc by weight in the dry film, ensuring high electrical conductivity for galvanic protection.

Corrosion Resistance: Suitable for environments up to C5-M (Marine) and C5-I (Industrial) classifications according to ISO 12944.

Heat Resistance: Capable of withstanding dry heat up to 150°C (302°F).

Recoatability: 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

For maximum efficacy, proper surface preparation and application conditions are critical. Length: 620 mm (24

Surface Preparation: Steel must be abrasive blast cleaned to a minimum standard of Sa 2½ (ISO 8501-1) with a surface profile of 50–75 microns. Application Methods:

Airless Spray (Recommended): Use a tip size of 0.43–0.53 mm and a pressure of 130–180 kg/cm².

Brush/Roller: Primarily for touch-ups or small, difficult shapes. Multiple coats may be needed to achieve the target DFT. Drying Times (at 25°C): Touch Dry: 20 minutes. Hard Dry: 6 hours. Minimum Overcoating Interval: 12 hours. 4. Major Applications

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

Marine & Offshore: Ship superstructures, offshore platforms, and port facilities.

Infrastructure: Bridges, pipelines, and petrochemical plants.

Industrial Maintenance: Ideal for repairing or touching up existing inorganic zinc coatings. 5. Safety and Handling

Zincanode 620 is a flammable material and contains high levels of zinc dust. Flash Point: Mixed product is approximately 20°C.

Storage: Should be stored in a cool, dry area. The typical shelf life is 6 months from the date of manufacture.

PPE: Use respirators during spray application and avoid skin/eye contact. For full safety details, refer to the Berger Safety Data Sheet. Berger Zincanode 620

Zinc anodes are the unsung heroes of marine and industrial protection. When searching for a 620 datasheet, you are likely looking for a high-capacity, bolt-on sacrificial anode designed for hulls, ballast tanks, or large steel structures.

Below is a comprehensive technical breakdown of the specifications, applications, and installation guidelines for a standard 620-series zinc anode. ⚓ Zinc Anode 620 Technical Specifications

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) Length: 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

To meet MIL-A-18001K (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

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

Open Circuit Potential: -1.05 Volts (relative to Ag/AgCl reference electrode).

Electrochemical Capacity: 780 Amp-hours per kilogram (Ah/kg). Consumption Rate: Approx. 11 kg (24 lbs) per Amp-year. Density: 7.13 g/cm³. 🛠️ Key Applications

The 620 series is a "medium-heavy" anode, making it ideal for: Commercial Hulls: Tugs, barges, and fishing vessels. Ballast Tanks: Protecting internal steel from salt water.

Piers and Pilings: Mitigating corrosion on submerged infrastructure. Heat Exchangers: Large-scale industrial cooling systems. 📝 Installation & Maintenance Best Practices

To ensure your 620 anode provides maximum protection, follow these rules: Electrical Continuity

Never Paint Anodes: Paint insulates the zinc, rendering it useless.

Metal-to-Metal Contact: Ensure the mounting studs are wire-brushed and clean before bolting. Replacement Schedule

The 50% Rule: Replace the anode once it has consumed 50% of its original mass.

Active Monitoring: If an anode looks brand new after six months in salt water, it is likely not working due to poor electrical contact. Environmental Suitability Salt Water: Excellent (Zinc is the industry standard).

Brackish Water: Good (Aluminum may be preferred for low-salinity).

Fresh Water: Poor (Zinc can form a "crust" of oxide that stops the current; use Magnesium instead). If you'd like, I can help you:

Compare prices for 620 anodes from different marine suppliers.

Find the exact CAD drawings for a specific brand's 620 model. rendering the anode useless.

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

Do you have a specific brand (like Martyr or Canada Metals) in mind for this datasheet? AI responses may include mistakes. Learn more

Protecting Your Assets: The Zinc 620 Anode Deep Dive If you’re operating in marine environments, you know that saltwater is the enemy of metal.

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

is a powerhouse in this category, specifically designed to take the hit so your infrastructure doesn't have to. What is a Zinc 620 Anode?

The "620" designation typically refers to specific military or industrial standard compositions (often aligned with MIL-DTL-18001L

) used for cathodic protection. These anodes are made of high-purity zinc alloyed with small amounts of aluminum and cadmium to ensure they corrode evenly and don't "passivate" (develop a crust that stops them from working). Key Technical Specifications Based on industry standards like those found on , here is what you can expect from a 620-series datasheet: Potential: Approximately

(vs. Ag/AgCl reference electrode). This negative potential ensures it remains the "active" part of the circuit. 780 Amp-hours per kilogram (354 Ah/lb). Efficiency: 90% to 95% TSEWG TP-17

. Unlike other metals, zinc provides a very steady, predictable current output. Consumption Rate: 10.7 kg (23.5 lbs) per Amp-year. Why Choose Zinc Over Aluminum or Magnesium? Fisheries Supply

notes that aluminum is becoming more popular, Zinc 620 remains the gold standard for pure saltwater for several reasons: Reliability:

It has a long track record in military and commercial shipping. No Over-Protection: Magnesium can sometimes be

active, causing paint blistering on hulls. Zinc is "gentle" enough for most coated surfaces. Self-Cleaning:

The 620 alloy is designed to shed its corrosion products, ensuring a fresh reactive surface is always exposed to the water. Maintenance and Replacement

Don't wait until the anode is gone to replace it. According to the Barnacle King's Guide

, you should replace your Zinc 620 anodes when they have worn down to 50% of their original size. In most marine conditions, this occurs every 6 to 12 months. Application Tips Proper Contact:

Always ensure a metal-to-metal connection. Never paint over your zincs, as this effectively "insulates" them and stops the protection. Placement: For vessels, BoatCorrosion.com

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?

Check your current consumption rates to see if switching to a higher-capacity Zinc 620 could extend your service intervals. customized maintenance schedule

template based on your specific vessel or infrastructure type?

If you need this adapted for a website, catalog, or social media, just let me know.

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.

10. How to Read a "Non-Standard" 620 Datasheet

Many Chinese and European manufacturers use "620" as a model number, not a dimension.

• Example: "Type 620" could be 300mm long.
• Critical step: Always look for the "Rated kg weight" on the datasheet. A true 620-size anode for hulls is between 6.0 and 6.5 kg. If it weighs 3kg, you are buying a half-weight knock-off.

Mass & lifetime calculation example

• Assumption: Design current = 1 A, required service = 5 years.
• Time = 5 × 365 × 24 = 43,800 h.
• Total Ah = 1 A × 43,800 h = 43,800 Ah.
• Using zinc capacity ~823 Ah/kg → Required mass ≈ 43,800 / 823 ≈ 53.2 kg.
• Number of 620 g anodes ≈ 53.2 kg / 0.62 kg ≈ 86 anodes.

3. Physical Dimensions (Model 620 – Standard Block)

The "620" typically denotes the net weight (0.62 kg or 1.37 lbs) of zinc, though some industrial suppliers use the code for a 620 cu. cm volume. The most common commercial variant used in North America and Europe is the Hull Mount 620:

• Net Weight: 6.8 kg (15 lbs) – Note: Verify supplier specific weight; "620" often refers to a shape series, not gram weight.
• Length: 305 mm (12.0 inches)
• Width: 150 mm (5.9 inches)
• Height: 38 mm (1.5 inches)
• Core Insert: 2x Galvanized steel straps (4.8 mm diameter) or U-bolt configuration.

9. Troubleshooting Premature Failure

Symptom: The 620 anode is hard, white, and "crusty" while the steel is corroding. Diagnosis: Passivation. Cause:

• High Iron content (>0.003%).
• Water resistivity > 2,000 ohm·cm (zinc needs chlorides).
• Anode too small for the surface area (over-polarization happens? No – zinc under-polarizes if small).

Fix: Switch to Aluminum anode or verify water chemistry.

5. Installation & Weld Procedure

A poor weld ruins a perfect anode. Follow this datasheet protocol:

1. Surface Prep: Grind hull/steel surface to SA 2.5 (near-white metal) within 50mm of weld area.
2. Weld Type: Double fillet weld, 50mm length on each side of the strap.
3. Weld Rod: AWS E7018 (Low hydrogen).
4. Core Connection: The steel insert is not structural; do not lift the ship by the anode. The weld must make electrical continuity (< 0.001 ohms resistance).
5. Painting Rule: Do not paint over the zinc. Mask off the anode. Paint creates an insulating barrier, rendering the anode useless.