A sacrificial anode is an anode made from a less noble metal like aluminum or zinc.
Sacrificial anodes for aluminum boats.
We carry zinc anodes aluminum anodes and magnesium anodes for any of your corrosion protection needs for boats yachts commercial vessels and all types of pleasure crafts.
All our zinc anodes are made to mil spec standards mil a 18001 and our aluminum anodes are pressure die cast and engineered to mil a 24779 ensuring longevity and precision.
But there are other zincs made of aluminum magnesium and various alloys with various trade names.
That said aluminum is more active than zinc so it more readily detects stray currents around the boat.
Market and are the same zincs sold by the major marine supply stores and your local boat yard.
It has not happened already only because the cost of aluminum anodes has been higher than zinc without any discernible benefit to the boat owner.
More electrically active it protects the other two metal anodes when connected to them in seawater to make a circut gives up it s electrons dissolving first while preventing galvanic corrosion on boat parts.
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The term zincs has become synonymous with sacrificial anodes being that zinc was the original material used for this purpose.
All anodes contain alloying and trace elements of other metals in fact each metal is best suited to a different environment.
Zinc anodes also known as sacrificial anodes play a key role in the maintenance of your boat.
Aluminum anodes usually last longer than their zinc counterparts.
While commonly referred to simply as zincs sacrificial anodes are in fact available in several different alloys including aluminum magnesium and zinc although the latter is the most common.
Aluminum alloy anodes are almost certainly to become more common.
The anode deteriorates instead of your boat.
We exclusively specialize in the sale of sacrificial zinc aluminum and magnesium anodes for recreational and commercial boaters.
In addition aluminum anodes tend to last longer they work better than zinc in brackish.
Now most boaters refer to sacrificial anodes as zincs because zinc has been used for a long time.
The choice of zinc depends on your boating environment.
However other metals such as aluminum and magnesium also work as sacrificial anodes.