Mary Kate On Off Cleaner

Discussion in 'Sport Boats' started by Searayguy185, Aug 29, 2017.

  1. TN Boatman

    TN Boatman Member

    Aug 31, 2017
    Maryville, TN
    1998 Sundancer SE
    7.4MPI B3
    Believe it or not, Shout stain remover for clothing works great. I was cleaning the hull of Waverunner one day and had run out of hull cleaner and thought "I'll give it a try" Tough on stains yet easy on fabric so must be OK for my fiberglass and gel coat, right? Worked great! Light scrub and was clean as a whistle.
  2. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    1988 Proline Center Console - 90hp Mariner/Mercury
    1969 Boston Whaler
    Twin 8.1 V-drives
    +1 on this (cheap and easy) but don't breath it either when spraying. It will strip the polish/wax so reapply a coat of protection when done.

  3. boatman37

    boatman37 Well-Known Member

    Jun 6, 2015
    2006 Crownline 250CR. 5.7 Merc BIII
    Previous: 1986 Sea Ray 250 Sundancer. 260 Merc Alpha 1 Gen 1
    5.7 Merc BIII
    I used the on/off this year and it worked great. i heard not to spill it on a galvanized trailer but mine is painted. i sprayed the trailer to get it wet and got quite a bit of the on/off on the painted trailer and no issues with it
  4. peterkvs

    peterkvs Member

    Nov 11, 2012
    Guntersville, Alabama
    400 Sundancer 1999
    3116 Cats, 1000 hours
    The foaming Barkeepers Freind works pretty good and is much less caustic. I spray on the whole boat , wait, and then use a scrub brush to get the last bit off. Then hose off. It's not spray and wash like the on and off, but it works as it has oxylic acid in it.

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