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MARIKATE On & Off Hull/Bottom Cleaner

Powerful cleaner

Removes waterline, rust and scum. Won't harm fiberglass. Brush-on/rinse-off, biodegradable formula.
  • Quart or gallon
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
On & Off Hull/Bottom Cleaner - Gallon 127979 MK20128
In stock online.

$59.99

On & Off Hull/Bottom Cleaner - Quart 127961 MK2032
In stock online.

$19.99

Product Description

Powerful cleaner

Removes waterline, rust and scum. Won't harm fiberglass. Brush-on/rinse-off, biodegradable formula.
  • Quart or gallon

Specs

REVIEW SNAPSHOT®

by PowerReviews
 
4.7

(based on 47 reviews)

Ratings Distribution

  • 5 Stars

     

    (43)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

93%

of respondents would recommend this to a friend.

Pros

  • Easy to use (37)
  • Effective (19)
  • Visually pleasing (5)
  • Stores easily (4)
  • Well built / quality (4)

Cons

  • Doesn't work (3)

Best Uses

  • Outdoors (8)
    • Reviewer Profile:
    • Casual/ recreational (13), Midrange shopper (10), Advanced (9), Budget shopper (7)
    • Primary use:
    • Personal (19)

Most Liked Positive Review

 

It really works!

We had stubborn algae stains on our PWC from several years of neglect. I tried a ton of different cleaners and nothing would cut it. A helpful associate at West Marine recommended this stuff...Read complete review

We had stubborn algae stains on our PWC from several years of neglect. I tried a ton of different cleaners and nothing would cut it. A helpful associate at West Marine recommended this stuff and it absolutely works!!! I put some in a spray bottle and as soon as it hit the hull you could see it immediately dissolve the stains. I did small areas and washed it off immediately with a lot of water. So easy to use. I recommend that you read the directions and warnings, this is an acid-based product! Avoid getting it on any non-fiberglass materials. I got a small amount on my sponsons and it left white spots, however, it did not affect the decals.

VS

Most Liked Negative Review

 

Bad Bottle??

Purchased On and Off on recommendation of West Marine. Was assured it would "instantly" remove everything from barnacle cement to waterline stains. It did neither. Made NO DIFFERENCE whatsoever on...Read complete review

Purchased On and Off on recommendation of West Marine. Was assured it would "instantly" remove everything from barnacle cement to waterline stains. It did neither. Made NO DIFFERENCE whatsoever on any stain! Will try to get refund from WM.

Reviewed by 47 customers

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Displaying reviews 1-10

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5.0

If you got stubborn spots this will get it off

By Paul

from Stuart, FL

About Me Midrange Shopper

Verified Buyer

Pros

  • Easy To Use
  • Quality Construction
  • Stores Easily
  • Works Effectively

Cons

    Best Uses

    • Bathroom
    • Boat
    • Kitchen

    Comments about On & Off Hull/Bottom Cleaner:

    We had some orange stain on the boat which regular boat soap wouldn't remove. This product removed the stain as soon as it hit the surface. Just be careful when using the product, it can be harmful. Follow the safety precaution on the bottle.

    • Primary use:
    • Personal
     
    5.0

    Works amazing

    By Mshark55

    from Oxford, CT

    About Me Midrange Shopper

    Verified Buyer

    Pros

    • Easy To Use
    • Works Effectively

    Cons

    • Wash down immediately

    Best Uses

      Comments about On & Off Hull/Bottom Cleaner:

      Instantly will take any stain of the fiberglass with just a quick wipe.

      • Primary use:
      • Personal
       
      5.0

      Best I've ever used to get the yellow stanes off! Just spray

      By Rlpe

      from Louisiana

      About Me Budget Shopper

      Verified Buyer

      Pros

      • Easy To Use
      • Works Effectively

      Cons

        Best Uses

          Comments about On & Off Hull/Bottom Cleaner:

          Best I've ever used to get the yellow stanes off! Just spray on and wash off with regular water hose.

          • Primary use:
          • Personal
           
          5.0

          USA Formula good, Canadian not

          By Pacific Raven

          from Vancouver BC

          Pros

          • Easy To Use
          • Works Effectively

          Cons

            Best Uses

            • Marine growth, barnacles

            Comments about On & Off Hull/Bottom Cleaner:

            Very strong, rapidly dissolves barnacles which I frequently do in Mexico if I leave my RHIB in the water too long. Very caustic, eye protection and skin protection are a must, and you must use upwind as a strong intake of the fumes is very caustic. This is a serious product. But beware - the Canadian formulation is much weaker and will not dissolve barnacles like the USA formula.

            • Primary use:
            • Personal
             
            5.0

            Great product!

            By Sammy

            from Long Island new york

            About Me Budget Shopper

            Verified Buyer

            Pros

            • Easy To Use
            • Works Effectively

            Cons

              Best Uses

                Comments about On & Off Hull/Bottom Cleaner:

                Great stuff!

                • Primary use:
                • Personal
                 
                5.0

                Amazing Product

                By Coco

                from Fort Pierce, FL

                About Me Budget Shopper

                Verified Buyer

                Pros

                • Easy To Use

                Cons

                  Best Uses

                  • Boat Hull

                  Comments about On & Off Hull/Bottom Cleaner:

                  We had left our boat in the Sebastian River for a week with no bottom paint and the stain on the hull was a dark orange. I used on and off and that is exactly how easy it was - you put the product on and rinse off and the hull was shiny white again... A truly amazing product.

                  • Primary use:
                  • Personal
                   
                  5.0

                  on & off cleaner

                  By bill

                  from ocean city md

                  About Me Midrange Shopper

                  Verified Buyer

                  Pros

                  • Easy To Use
                  • Quality Construction
                  • Stores Easily
                  • super easy
                  • Works Effectively

                  Cons

                    Best Uses

                    • taking stain off

                    Comments about On & Off Hull/Bottom Cleaner:

                    Salesmen always try to sell you something but iam so glad I got this product because it works great hands down.

                     
                    5.0

                    on & off cleaner

                    By bill

                    from ocean city md

                    About Me Midrange Shopper

                    Verified Buyer

                    Pros

                    • Easy To Use
                    • Quality Construction
                    • Stores Easily
                    • super easy
                    • Works Effectively

                    Cons

                      Best Uses

                      • taking stain off

                      Comments about On & Off Hull/Bottom Cleaner:

                      Salesmen always try to sell you something but iam so glad I got this product because it works great hands down.

                       
                      5.0

                      Great product

                      By EC Pirate

                      from Wilmingtom NC

                      About Me Midrange Shopper

                      Verified Buyer

                      Pros

                      • Works Effectively

                      Cons

                        Best Uses

                          Comments about On & Off Hull/Bottom Cleaner:

                          Have used this product for years and always has been effective to remove rust stains and any other things that normal cleaners don't remove. The name says it all spray it on and wash it off......I actually dilute the product with water in a spray bottle and spray the areas needed otherwise the product is very strong. BE CAREFUL!

                          • Primary use:
                          • Personal
                           
                          5.0

                          Wow

                          By Michael

                          from Hilton head sc

                          Pros

                          • Easy To Use
                          • Quality Construction
                          • Works Effectively

                          Cons

                            Best Uses

                              Comments about On & Off Hull/Bottom Cleaner:

                              Very impressed. Have a boat that sat for 4 years and had water rust all over it. Tried many different products that did absolutely nothing. Took 3 spray down and wipe off and it was completely brand new looking

                              Displaying reviews 1-10

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