Freshwater Boat to Saltwater

[QBhoy]

Thank so far.

Outboard, Tohatsu 115.

It has two anodes, a bar at the bottom of the transom bracket and a trim tab. I've checked at my normal source, and they don't have aluminum ones like are preferred now in Salt. A lot of supplier still are stuck on zinc.

The fiberglass boat is my wife's idea, to keep it in the canal to make boating easier. But, then, she did the googling that prompted this thread. My plan would be to trailer it one season and get a lift built in the canal adjacent to our back yard.

I tried to contact Hurricane, and they channeled it to a nearby dealer. All that has done is gotten promotional emails from that dealer, not answering my question.

After our first pontoon toons succumbed to galvanic corrosion, We have been trailing (only a mile to the ramp) with the replacement pontoon for two Winters now, and I've been flushing with ear muffs and hosing it down good after. Trailer, too. Plus annual replacement of anodes, which I added a couple extra.

Zinc is what you want for salt really. The standard aluminium ones are for dual use, but could argue a slight compromise for exclusively one or the other. Not referring to other type aluminium anodes that are available.
I’d also get some marine inhibitor spray for coating things in a protective film. Get some vinyl protection product too, for the seats etc. regular greasing of things too.

 

[tablerockboater]

A U.S. Navy research team has discovered an alloy for making better, cheaper underwater anodes with the potential for shifting the global business of maintaining ships and piers.

A patent application was published by the federal government on Thursday for the new aluminum anode alloy containing a “very small addition of tin.”

Many anodes are made of alloys consisting mostly of zinc, a metal that can easily absorb the electrons flowing from the other metals, which is why mariners call anodes “zincs.”

But zinc is relatively heavy, expensive, and toxic to aquatic life. In 1988, an aluminum-centric alternative became commercially available but was still dependent on zinc for anti-corrosive properties.

A Navy diver positions a 200-pound zinc anode on an ammunition pier. This is one of the possible applications of the Navy’s new zinc-free alloy.

The Navy lab cast half-inch pucks and 1-inch cubes of the new alloy. Electrochemical testing revealed its superior current capacity compared to commercially available zinc alloys.


“The alloy compositions described herein are designed to have high operating efficiencies to make the alloy as cost-practical as possible, high current output to enable high and long-lasting performance for a given weight of anode (energy density), and optimized operating potential, which will vary depending on the application, states the Navy patent filing.

“An important added benefit is that the alloys of this invention do not contain zinc.”

Technology for Innovative Entrepreneurs & Businesses | TechLink

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