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Cleaning Tips for Aluminium Boat Hulls

Blog | 25 January 2018

In this case, a specially selected aluminium cleaner works best. Dull and stained at the water-line, the boat’s lustre has faded, but that branded chemical compound soon restores the glossy surface. Hang on, what if this solution is harmful, not helpful? Tip number one, then, would be to select a chemical cleansing agent that’s tailored for marine aluminium surfaces. Here, let’s expand on that little nugget of information.

Select a Branded Boat Hull Cleaning Product 

Among these generally favoured sheet aluminium cleansing wares, corrosive compounds excel. They burn the skin, irritate eyes, and they even damage the environment. Choose a branded aluminium boat cleaner with confidence, but be aware of its concentrated chemical properties. Wear gloves, follow the instructions, and keep this potentially caustic stuff away from the grass.

Not All Branded Chemicals are Marine Friendly 

An oxidized dullness clouds the hull. Stains are running in parallel lines near the top of the sheet metal. This is water-line staining, and it’s not pretty. Unfortunately, a poorly chosen cleaning product could make matters worse. Okay, the stains are gone, but an ugly blotching pattern spreads as the chemically scoured hull dries. Use a reputable cleansing agent. Better yet, test that specially formulated blend on a junk piece of aluminium.

Opt for a Pre-treatment Wash 

Armed with a few buckets of clean water, no soap, rinse the hull free of mud and debris. It’ll dry fast, especially if there’s a light breeze coming off the water. Plastic scrub-brushes and a hose loaded with pressurized water go to work if the build-up stubbornly clings to the hull. If that silt and sediment are finally gone, the boat can be left to dry again.

Beware of Hull Safety Issues 

After the rinsing stage, that chemical solution is selected. Wear protective gloves and safety goggles. Read the safety warning on the can or bottle. Next, aluminium hulls become heat sinks when they’re out in the open. If the sun is beating down hard, cover the boat with a clean work tarp. Alternatively, set up the cleansing area in a shady spot.

That dedicated aluminium cleansing agent is still every owner’s best bet. Apply even pressure to the scrubbing pad, apply the low-micron chemical cleaner, and wipe away the oxidization stains. Of course, that active cleaner is still coating the hull. After guiding the scrubber pad with uniform pressure, stand back. Pick up a hose and wash away the last of this caustic chemical. The aluminium oxide film is gone. To keep the hull that way, use an aluminium polish, a sealant that’s designed to preserve this now glossy surface finish.

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