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MGDUFF Zinc Boat Hull Anodes ZD52

MG Duff ZD52 Pair of Disc Shaped Zinc Hull Anode for Salt Waters (Bolt On)

Part No. 812030

13.01 You pay €17.48 Incl VAT You pay €14.57 Excl VAT

RRP €19.91 €16.60

Save €2.43 (12.2%) Save €2.03 (12.2%)


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Brand MG Duff
Model ZD52
Construction Zinc
Anode Style Disc
Diameter 50mm (2")
Depth 25mm (1")
Nominal Weight kg 0.3
Fixing Bolt on
Bolt Centres Centre

MG Duff ZD52 pair of disc shaped zinc sacrificial hull anodes supplied with fixing bolt, suitable for use in salt waters. Sacrificial anodes should be fitted and correctly bonded to all boats / vessels to help prevent corrosion by cathodic protection when in the water.

Cathodic protection is an electrochemical process which halts the natural reaction (corrosion) of metals in a particular environment by superimposing an electrochemical cell more powerful than the corrosion cell. Sacrificial anodes are fitted or bonded to the metal to be protected which in turn, as it has a greater electrical potential than the anode material, becomes cathodic and causes the anode to waste instead of itself.

All cathodic protection systems must be inspected annually and the sacrificial anodes renewed if more than 50% are wasted. You should check the working surface of the sacrificial anode to ensure that it is free of paint and chalky corrosion deposits. When fitting or replacing a sacrificial anode you should also replace the serrated fan disc washers under the nuts and change the anode backing sheet on wood and GRP hulls. Exposed fixing studs, nuts and washers should be well greased or painted after assembly.

MG Duff Sacrificial Zinc Hull Anodes

  • MG Duff Part Number: ZD52.
  • Construction: Zinc.
  • Fixing Type: Bolt on, supplied with bolt.
  • Diameter: 50mm.

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