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Custom Trailers - River Wolf Aluminum Boats Inc.

Corrosionpartial or complete wearing away, dissolving, or softening of any substance by chemical or electrochemical reaction with its environment. The term corrosion specifically applies to the gradual action of natural agents, such as air or salt water, on metals.

If metal can corrode around salt water does it make sense to use aluminum boats in a salt water environment? Aluminum boats in general and Duroboats in particular offer great performance, ease of maintenance and economy. The need to operate in salt water should not deny you those benefits, but you must be smart about it.

It is good to be concerned and keep an eye on corrosion. All metal boats are potential candidates for galvanic corrosion. We use high quality aluminum, which is corrosion resistant but not corrosion proof. Customers should protect against corrosion aluminum boat trailer corrosion industry best they can and be vigilant in looking for it. There are many variables. In some waters you could leave the boat for a significant time without any ill effect.

In others damage can begin in a short time. The variables include; salinity of the water, temperature, organic material in aluminum boat trailer corrosion industry aluminumm, electrical activity nearby, presence of other metals.

Commercial harbors can be worse for electric activity than remote harbors. There is aluminum boat trailer corrosion industry way to know what your boat will experience without observation. Protective coatings can help prevent the build up of organic material on your hull.

Organic material can be an aid to corrosion. If you use a protective bottom paint make sure it is made for use with aluminum. It must not be based on a dissimilar metal. Side note: Copper pennies, copper shell casings, alumibum copper wire used as fish clubs have all been known to be starting points for corrosion if left in the bottom of an aluminum boat.

Watch for corrosion near bolt holes, chipped paint, behind peeling paint and any place the aluminum has been scratched or dented.

Edges, cracks places that trap salt water are more susceptible than flat surfaces. Avoid build up of organic material, plant growth, algae, barnacles. Organisms create conditions that make the aluminum more susceptible to corrosion. Inspect the keel, chine extrusions and corner Aluminum Boat Trailer Corrosion Rate castings regularly. If they have been dented or scratched on rocks or beaches they may provide a starting point for electrolysis.

Except for sacrificial anodes, don't mount any metal to the hull other than aluminum or high quality stainless steel. If you use fasteners they should be plastic or stainless, not zinc, brass, copper or iron based. Inside the boat, don't let any metal sit in the same spot in the bilge for long.

Lead sinkers, fish hooks as mentioned earlier copper even a penny sitting in one spot can be a starting point for electrolysis. Isolate the hull from electrical current.

Make sure your battery is grounded to your motor. Don't ground electrical aluminum boat trailer corrosion industry to the aluminum hull. If you are going to moor the boat even with a protective coating it should be inspected often and the hull cleaned.

Don't let induztry residue build up on any surfaces. If you see corrosion arrest it immediately before small damage becomes big damage. Cathodic protection in the form of sacrificial anodes aluminum boat trailer corrosion industry required if you will aluminum boat trailer corrosion industry your boat in saltwater. Cathodic protection prevents corrosion. Your boat if not protected is aluminum boat trailer corrosion industry to electrochemical corrosion.

Galvanic Corrosion--occurs when different metals with different galvanic voltages are electrically connected and wetted by water. Stray Current Aouminum when submerged metals are subjected to an electrical current that has strayed from an electrical circuit powered by a battery, generator or dock power.

It is the result of an electrical fault. Metals have different levels of nobility depending on how readily they give up their mass when in a hostile environment. When corrosion is at work metal actually leaves the least noble metal in any circuit and deposits itself on the most noble metal. Aluminum is low on the nobility Aluminum Boat Trailer Corrosion Group tables so aluminum boat trailer corrosion industry will give itself up if it is in a coerosion solution near a more noble metal and there is electrical activity natural or man made present.

Cathodic protection is supplied by the use aluminum boat trailer corrosion industry sacrificial anodes. Fortunately for aluminum there are metals that are even less noble.

They include magnesium, zinc and some aluminum, zinc alloys. These metals can be made in to sacrificial anodes. The anodes when attached directly to an unpainted area of an aluminum hull will protect any part of the hull that is not electrically isolated form the anode. Which one is best? Corrision is very active corrksion salt water and is sometimes used for fresh water applications.

Zinc works well but can oxidize over when exposed to air. This means if zincs are not cleaned when a boat infustry been out of the salt and the boat is returned to the salt the oxidized coating will protect the zinc and it will not function as a sacrificial anode. Some traklerzinc alloys will function well and aluminum boat trailer corrosion industry oxidize over so they are better for boats that may be periodically out of trailre salt water.

Anodes do not last forever. Some anodes will have built in warning devices that indicate when replacement is necessary.

My outboard has an anode on it. Will that protect my boat? If the zinc is sufficient in size, and the motor is connected electrically to the hull and the zinc is always in the water it may protect the hull. When the motor is lifted out, the anode is no longer in the circuit with a hull that remains in the water and there is no protection.

The hull should have its own anode to be safe. Is my boat safe from corrosion when it is on the beach? If it is embedded in sand that is often wet there may be some risk.

If saline water collects inside the boat there may be some risk. An anode mounted outside the boat will not protect metal inside the boat if the anode is not submerged in the water that has collected inside.

A separate anode might be desirable for inside the boat. Some folks aluminum boat trailer corrosion industry an anode fish on a wire that can be hung overboard when in the ttailer and left in the bilge if left upright on the beach or a dock. If you think you may need anodes see your dealer, read the information at web sites of anode manufacturers.

To protect your boat select anodes correct in size and in composition for your situation. Inspect the boat and the anodes.

Galvanic indusrry is excluded from our warranty as well as the warranty of most aluminum boats so it pays you to be educated on the subject. With proper care you should be able to avoid the effects of galvanic corrosion. Corrosion What is it? What is that? Some questions: Q. All rights reserved.

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A bronze or other metal fitting on your boat or even a neighboring vessel in the water can be the alternate metal that corrodes your aluminum hull. The American Boat and Yacht Council ABYC recommends that aluminum boats be painted with a protective coating to shield them from the kind of electrical reaction that occurs in saltwater with mixing metals. Aside from making sure your craft is painted, you can also use zinc anodes, which are connected to the aluminum on a boat or on its motor via wiring, and these serve to add extra electrons to the aluminum when the two metals come into contact with saltwater.

This means that the zinc anode itself erodes, rather than the aluminum. We hope this guide helps you to stop corrosion on your craft! And if you still need a boat, then stop by our Seattle dealership today to browse our vast inventory of new and used aluminum boats for sale. Master Marine proudly serves our Puget Sound neighbors in the city of Tacoma, Washington, as well as the greater Seattle metropolitan area.

There is no easy way to repair this permanently. Another way to stop the leaks is to thoroughly clean and dry the area around the leaking seam. Apply Dow sealant and let dry for a day or two. This tenacious sealant sticks and provides Aluminum Boat Trailer Corrosion Open a strong seal.

But workmanship and clean surfaces are essential for success. That flexing occurs in most aluminum boats. The only way to repair a fatigue crack is with aluminum welding. Take your boat to a specialist who can not only weld the crack but perhaps apply additional metal to reinforce the area. Around the transom is an area to inspect for fatigue cracks carefully. If there are any problems, they will be clearly visible. Another issue that many boaters face with their aluminum boats is that they can be loud.

The sound of water slapping against an aluminum hull can be jarring if one is not used to it. While soundproofing options exist to make for a more comfortable ride, most soundproofing work involves aftermarket parts. If you are willing to make some post-purchase modifications to your aluminum boat, the noise level inside the boat can be reduced significantly.

However, keep this issue in mind if you plan to use your aluminum boat in backwaters or choppy lakes. The sounds are less noticeable out on the open sea. While some boaters like the work-boat look of an aluminum boat, you will be hard-pressed to hear other boaters admire your boat as they might varnished woodcraft. Aluminum boats are also noisy.

Drop a tackle box in the bottom of an aluminum boat, and the fish will know you are up there. Riding in aluminum boats is also noisy. Speaking of insulation, aluminum boats transfer heat and cold quite easily. An aluminum hull may be pleasantly cool when fishing in the hot sun.

But larger boats with living interior can be uncomfortable. The inside of the hull will sweat condensation like a beer can, right out of the cooler. Things can get damp and moldy inside. Aluminum boats with living quarters require careful insulation to reduce condensation and keep the interior cool.

As discussed above, two dissimilar metals can set up corrosion. Epoxy barrier coats between the aluminum hull and bottom paint will effectively prevent this. Aluminum boats are known for being durable and well constructed.

With a relatively low amount of maintenance, aluminum boats can last for years. Aluminum also offers a lightweight and fast ride, which means more fun and less money spent on gas. Aluminum boats are also known for their reasonable cost and ease of manufacturing. As such, there are thousands of aluminum boats out on the water and for sale. Many mariners also enjoy the distinct look of aluminum boats.

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