MARIKATE SHIPSHAPE
On & Off Hull/Bottom Cleaner

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

I recommend adding this product to a spray bottle. Use a small scrub brush for the heavy areas. You will need to use a well ventilated area an/ or mask and gloves. It works just as directed. I could literally see the scum line come off within seconds of applying. Be sure to wash/wax after use and your boat will look good as new.

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

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.

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

It was easy to use, simply sprayed on, used a scrub brush and hosed off.

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

Works as advertise brush on wash off. the scum on the bottom of my boat had sat from last year. Took only 1 hour to do a 22ft boat

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

On/Off instantly removed a black coating on my boat deck that other products wouldn't budge; made the deck look brand new. Very strong fumes - read the cautions on the label.

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

I use this product on our inflatable that sits in the water all summer. It easily removes all fouling and yellow stains. It even works on the PVC tubes and does not cause damage.

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

I only bought this cleaner because of the reviews here. I was skeptical at first, my hull was brownish green from sitting in the bay all summer. I wiped it on with a sponge and it worked right away, rinsed it off with water and the hull looks like new.

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

Stuff works great. More expensive than muriatic acid, but because of the detergent additive it stays on better and doesn't smell as bad. A little scrubbing took the lake stains off the bottom of my boat as described. Used a gallon to clean two 26' fiberglass boats.

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

Cleans scumlines and soft growth from the bottom like it was never there.No scrubbing, scraping or heavy labor just follow the directions and be prepared to be pleasently surprised by a product that really does what it claims to do.

Comments about Marikate Shipshape On & Off Hull/Bottom Cleaner:

This stuff is really amazing. When I asked the people who built my boat how to get rid of the yellow stains on my Shallow Sport boat, they told me to use toilet bowl cleaner. It did work some, but it takes a lot of it and it doesn't get all of the yellow off. A neighbor on the island offered me some Mary Kate's On/Off Hull Cleaner because he saw how yellow my hull looked. I was amazed how just a little bit of cleaner would immediately take the yellow off. You can see a huge difference in my hull and how good it look now.