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Martyr Bolt-on Hull Anode, Zinc Alloy, CMZHC5AZ

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Key item features

Protective Application: This zinc alloy bolt-on hull anode provides cathodic protection for ocean-going vessels, structures, and equipment made from iron, steel, aluminum, magnesium, and other metals, specifically designed for saltwater environments.
Material Composition: Constructed from high-quality zinc alloy, this Martyr anode is pressure diecast and manufactured under an ISO 9001 Quality Management System, ensuring strict quality standards.
Physical Dimensions: The anode measures 8 inches in length, 4 inches in width, and 0.75 inches in depth, designed for bolt-on mounting.
Corrosion Prevention: As a sacrificial anode, it protects other metals by corroding itself, preventing electron flow from more positive metals, and is essential for pleasure craft boats.
Usage Guidelines: It is crucial to replace anodes when 50% corroded, ensure good electrical contact by cleaning mounting surfaces, and use new fasteners on sterndrives; it is not recommended for freshwater use or for painting.
Compatibility Note: This zinc anode is not suitable for use with aluminum outdrives, and trim tabs should be protected individually without bonding.

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Specs

Boat accessory type
Hull Anode
Brand
Martyr
Size
L
Color
One
Accessories
Anode
Model
Cmzhc5Az

Current price is $53.79

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About this item

Product details

What causes corrosion? Seawater is a good conductor and freshwater a bad conductor, so corrosion is worse in seawater. Generally, corrosion rates increase in proportion to the amount of oxygen in the water. However, cracks and crevices, which are areas starved of oxygen, become anodic and corrode also. Higher temperature increases corrosion rates - doubling for every 30 degrees C 55 degrees F. There are various types of microorganisms that can contribute to corrosion, either by removing protection or causing a corrosive environment.

Why do I need anodes? You need anodes on your engine because when two different metals are in contact, electrons will flow from the more negatively charged metal anode to the more positive metal cathode. If you want to protect both types of metal from corrosion, you must add a third metal such as zinc, although magnesium and aluminum are also used. This active metal becomes the anode for both metals. The zinc or aluminum sacrifices itself to protect the other two metals, hence the term "sacrificial anode".

Do's and Don'ts

DO change your anode when they are 50 percent corroded

DO make sure they make good electrical contact - remove paint and clean the mounting surface.

DO protect trim tabs individually do not bond. Although they are usually made from stainless steel they can still corrode and need sacrificial anodes.

DO be sure to use new fasteners on sterndrives - even stainless bolts fail as a result of corrosion.

DO keep a sterndrive immersed in the water so that the anodes can work.

DON'T use zinc anodes on aluminum outdrives

DON'T paint anodes. They will not

Provides low cost cathodic protection of ocean-going vessels, structures and equipment constructed of iron, steel, aluminum, magnesium, and other metals
Zinc Alloy for use in saltwater
Cathodic protection for Pleasure craft boats
Not recommended for use in fresh water
High-quality Martyr anodes are pressure diecast and manufactured to strict quality standards through an ISO 9001 Quality Management System
MPN: CMZHC5AZ
Material: Zinc
Mounting: Bolt-On
Length: 8"
Width: 4"
Depth: .75"

info:

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Specifications

Boat accessory type

Hull Anode

Brand

Martyr

Size

Color

One

Warranty

Warranty information

N/A

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Warnings

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm.