Chemical formulaĪlthough no one has the time to check out the entire ingredient list, making sure the cleaner is acidic or non-acidic is fundamental. While picking a hull cleaner, check out its compatibility with gel coats and painted exteriors. Meanwhile, hulls made of aluminum, plastic, or wood can accommodate other types of cleaners as well. For instance, fiberglass requires specialized cleaners that do not undermine the integrity of the protective gel coat on top. Hull cleaners are typically purchased based on the properties of the target. Instead of letting the huge range of hull cleaning options overwhelm you, make a checklist of considerations to make before making the purchase. Other Things to Consider When Buying a Hull Cleaner While it makes them relatively less effective for hardened stain deposits and thick greasy buildups, non-acid cleaners are comparatively safer to work with. These hull cleaners have little to no amounts of acid in them. High acid content can be damaging to work with, and since acid hull cleaners can cause skin and lung issues it’s important to wear protective gear while using them. Chemical Composition Acid hull cleanersĪcid cleaners use hydrochloric, oxalic, and phosphoric acid in a higher concentration that allows them to be effective against the toughest greasy and rust stains. These cleaners prove equally effective on metal, wood, and plastic surfaces without posing any threat of corrosion. Multi-material hull cleanerĪ fit-for-all cleaning solution, multi-material hull cleaners offer their services far beyond fiberglass. Since the core fiberglass material is coated with gel coat resin protection, it requires a specialized cleanser that cleanses the hull without damaging the protective layer. These hull cleaners are specifically formulated to work on fiberglass hulls. Hull cleaners are categorized into two categories: their compatibility with the hull and their chemical composition. Not all hull cleaners are made the same, and while some cleaners are only good for addressing algae others prove far more effective against chemical or rust buildup. Whether you’re cruising your boat or left it docked up at the port for too long, it is time you pay some attention to the hull before the thick greasy mildew starts eating away the bottom. I wore out 2 brushes on our Party Cruiser many years ago before I figured out the acid WILL do all the work.Once all the calcium is gone, then you can wash and wax the hull as needed.Finding Your Next Hull Cleaner: A Buyer’s Guide About once a minute take your water hose and rinse the boat and the ground, then start up again. Just keep spraying until it won't smoke, then move to the next 2 foot area. Spray the spot like your painting, get it wet, then wait about 5 seconds, that's about all the time the acid works before being neutralized by the calcium. As long as there's calcium, it will smoke. Pick a 2-foot long area on the hull and start spraying. Keep the spray away from any bright metal, including stainless, it WILL darken stainless. Keep a garden hose ON with a spray attachment to keep it off when not needed. Get some large trash bags and cover the trailer fenders and frame. You can go stronger, but I've found this works fine. Mix 20% acid 3 parts water to 1 part acid. You'll need a cheap garden sprayer, the $9 ones at HD or Lowes work fine. Muriatic acid from Lowes is okay too, ANY is okay as long as it's 20% or higher (HD acid is 14% for swimming pools, ok, but adjust mixture accordingingly) When that's done, go to Walmart or Home Depot and pick up 5 or 6 bottles of "The Works" toilet bowl cleaner, it will say "hydrochloric acid 20%" on the bottle. And I got it looking like new without ever touching the hull with ANYTHING other than water and muriatic acid-įirst, spray off all the algae as best you can with your power washer.
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