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The answer: YES. Muriatic acid is the best solution for cleaning scum off of fiberglass hulls. Forget expensive hull cleaner or any other "marine" product that claims to remove. Muriatic acid removes all scum/discoloration without any effect to the gel coat for about $6/gallon. Get a garden/lawn sprayer, an open area (for venalation), long pants/shirt that you don't care about, rubber gloves & goggles. The Muriatic acid will do the work, only light scrubbing may be necessary as the chemical dissolves the scum itself. Once the acid has sat for 5-10 mins, spray with water and then wash with a mild soap. In the end, you will have a brand new looking hull. Remember to wax after to protect in the future.
One word of caution is that the Muriatic acid fumes are very powerful. Be sure to be in a well venalated area and wear a painters venalator mask if necessary.
Enjoy your brand new looking hull!
What else can I help you with?
Can you use muriatic acid to clean paint stain on a fiberglass boat?
Using muriatic acid on a fiberglass boat is not recommended as it can damage the surface. It's best to use a cleaner specifically designed for fiberglass to remove paint stains. Test a small, inconspicuous area first before proceeding with the entire stain.
How do you clean battery acid off my fiberglass boat?
by a wet cloth soaked in salty water
Does muriatic acid damage vinyl boat seats?
Yes, muriatic acid can damage vinyl boat seats. It is a highly corrosive substance that can cause discoloration, deterioration, and weakening of the vinyl material. If you need to clean boat seats, it's best to use a cleaner specifically formulated for vinyl to avoid potential damage. Always test any cleaning product on a small, inconspicuous area first.
How do you dilute muriatic acid to clean boat bottom?
To dilute muriatic acid for cleaning a boat bottom, carefully mix one part acid with ten parts water in a well-ventilated area, wearing protective gear like gloves and goggles. Always add acid to water, not the other way around, to prevent violent reactions. Use a plastic container for mixing, and ensure the solution is used promptly and safely on the boat's surface. After cleaning, thoroughly rinse the area with fresh water to neutralize any remaining acid.
What to use to clean algae from fiberglass boat hull?
To clean algae from a fiberglass boat hull, use a marine-specific algae remover or a mild solution of water and white vinegar. A soft-bristle brush or sponge can effectively scrub the surface without damaging the fiberglass. Rinse thoroughly with fresh water after cleaning to remove any residue. For stubborn stains, consider using a fiberglass cleaner or a non-abrasive boat soap.
How do you clean a fiberglass boat?
take some vinegar and mix it in a bucket of water and use a rag to clean the outside... or you could put it in a spray bottle
Can muratic acid harm aluminum?
i want to clean algi from pontoons on my pontoon boat,,can muratic acid be used??????
Is fiberglass panel on a boat hull fireproof?
Fiberglass is actually very flammable.
How do you re-fiberglass a boat?
To re-fiberglass a boat, first, remove any damaged fiberglass and clean the area thoroughly. Then, apply a layer of fiberglass cloth over the affected area, ensuring it overlaps the edges for better adhesion. Mix and apply the resin according to the manufacturer's instructions, saturating the cloth and allowing it to cure. Once cured, sand the surface smooth and apply additional layers as needed for strength and finish.
How is a fiberglass boat better than a wooden one?
I would think a fiberglass boat is better than a wooden boat because a wooden one can rot and would be hevy to move weres the fiberglass boat wont rot and is light so would be easy to move.
How do you clean up an acid spill on a boat?
Depends what kind of acid, and what it spilled onto. - you haven't told us either one.
How do you remove fecal stains from fiberglass boat?
You can clean fecal stains from a fiberglass both by using hot water and dish washing liquid. Let the stained area soak in the soapy water for awhile before wiping it down.
