Non-caustic hull cleaner

Chef23Chef23 Posts: 6,065 Mega Baller
My season is winding down and I went to try and buy some of the HC-1 hull cleaner I have used for the last few years and it doesn’t seem to be in the market anymore. I would rather not go back to the acid. Has anyone found anything that works close to as well but isn’t as harsh?
Mark Shaffer


  • oldjeepoldjeep Posts: 3,889 ★★★Triple Panda Award Recipient ★★★
    Elbow grease and Collinite 920 fiberglass boat cleaner - followed by a couple coats of sealant or wax.
    Chuck P
    Not a mechanic but I play one at home
  • Chef23Chef23 Posts: 6,065 Mega Baller
    The domain is available now so I think it is gone.
    Mark Shaffer
  • chrislandychrislandy Posts: 373 Crazy Baller
    I use Y10 hull cleaner, works wonders but you have to wax it after
  • motoskiermotoskier Posts: 47 Baller
    Starbrite hull cleaner from West Marine is the best, Toilet bowl cleaner is almost as good as hull cleaner
  • Chef23Chef23 Posts: 6,065 Mega Baller
    Starbrite works great but it is acid based and is very tough on other stuff.
    Mark Shaffer
  • marknmarkn Posts: 536 Mega Baller
    Just use Lime-Away. It is a mild, phosphoric acid based product. Not the harsh HCL (Muriatic acid based products).
  • jjackkrashjjackkrash Posts: 1,179 Mega Baller
    What are you cleaning? I pretty much always hit the boat with a mechanical compound or polish when I want it to sparkle and then wax. But I also don't leave it in the water.
  • Chef23Chef23 Posts: 6,065 Mega Baller
    My boat has been sitting in the water since May. It is filthy. I really hate crawling under it so I prefer something easier. With the HC1 or something like Starbrite you can spray it on rub it a bit and hose it off.
    Mark Shaffer
  • skiboynyskiboyny Posts: 304 Baller
    edited October 2020
    Oxalic acid. It’s the ingredient that does the work.
  • lakeside7455lakeside7455 Posts: 80 Baller
    Try Booyah clean, it is a non acid huller cleaner and works great. Just spray it on, wait a few min and hose it off. It is the best stuff I tried and seems to beat everything. IT is really good at even removing the hard to remove tannin stains.
  • mlangemlange Posts: 250 Baller
    edited October 2020
    Do a 50/50 mix of Lysol Blue Gel toilet bowl cleaner and hydrogen peroxide. Put it in a spray bottle, spray it on, let it sit for a few seconds, wipe it off, then use soap & water.

    Cheap, simple, magical.
  • marknmarkn Posts: 536 Mega Baller
    As a point of reference, to clean "mineral salts" like calcium carbonate (CaCO3) you need to dissolve the salt using a low pH solution (acidic). To remove "organic slim and algae" you need a high pH (caustic) solution.
  • Mick04Mick04 Posts: 63 Baller
    I’ve used this in the past, Capt John’s. It is mildly acidic, but not nearly as harsh as On-Off, yet still worked as effectively and didn’t seem to harm trailer.
  • slvrbulitslvrbulit Posts: 233 Baller
    @Chef23 I ordered HC-! this summer. I actually have a # for the guy if you are still looking for it.
  • BlenderBlender Posts: 5 New Baller
    I just discovered Davis FSR gel. Worked amazing after boat was sitting in water for the season. Much better and easier than acid solutions I have used. Applied with bare hands, let sit for 15 min, wipe away no elbow grease required.
  • jjackkrashjjackkrash Posts: 1,179 Mega Baller
    edited July 6
    FSR works good but it is an acid, i.e., oxalic acid, IIRC.
  • DeanoskiDeanoski Posts: 1,153 Crazy Baller
    edited July 6
    toilet bowl cleaner mixed 50 -50 with water spray on, hose off.
  • lpskierlpskier Posts: 3,856 ★★★Triple Panda Award Recipient ★★★
    @Deanoski That will clean the shit right off your boat!
    John Wilkins- Si non pro sanguine quem ludus ne. #iskiconnelly
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