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Your cart is empty.For larger jobs it is easiest applied in a pump sprayer. Mix with water in a 1, 2 or 3 gallon sprayer and always work from the bottom and spray upwards. Brown algae stains on boat bottoms magically disappear while spraying. In some cases there is little or no scrubbing. Boat bottoms become showroom clean. Don’t work too hard. Spray away orange oxide stains on exterior surfaces. Again, always spray from the bottom upwards. In some areas Slimy Grimy will work overnight when applied on siding, roofs, shingles, etc. at dusk on a misty or damp night. Enhance the look and longevity of wood, stucco, brick, aluminum and all types of siding and shingles. White towels and clothing become white again with a little original Slimy Grimy in the wash (especially in areas where there is iron oxide in the water). Rust stains disappear to show the beauty of your environment.
Ashley S.
Reviewed in the United States on January 26, 2025
The Slimy Grimy Granular 1lb Tub is a must-have for anyone looking to clean and maintain their outdoor gear, vehicles, or any surfaces that accumulate tough grime and build-up. This product is incredibly effective at cutting through grease, oil, and dirt, making even the dirtiest items look new again.What sets Slimy Grimy apart is its granular texture, which helps scrub and exfoliate surfaces without being overly abrasive. It’s gentle enough for delicate equipment but strong enough to tackle hard-to-remove dirt and stains. Plus, a little goes a long way—just a small amount of product is needed to make a significant impact.The 1lb tub is compact and easy to store, and the application process is straightforward. Simply apply the granular cleaner, work it into the surface with a cloth or sponge, and rinse off for a fresh, clean result. It works well on a variety of materials, including plastic, metal, and rubber, making it versatile for a range of uses.Overall, if you’re in need of a tough, reliable cleaner for stubborn grime, the Slimy Grimy Granular 1lb Tub is a great choice. It's a practical and effective product that gets the job done without harsh chemicals.We use this product for cleaning the waterline on boats. Works like magic!!
Cada
Reviewed in the United States on September 4, 2024
Used on my boat and didn’t even need to scrub!! Just spray it on and just watch it melt the crud away
William Burnett
Reviewed in the United States on July 16, 2024
We use this cleaner a lot on the boat and our vehicles great product
Customer
Reviewed in the United States on December 4, 2024
Sprayed on with pump sprayer to bottom of the boat. Immediately the boat was changing back to the original color.Rinsed with garden hose. So easy
Joe T. Tunstall
Reviewed in the United States on October 13, 2024
I've been making my living running boats for nearly 20 years now.Rust, water and grime stains on. Your sled. Throw the other crap out. This is all you need. Spray your boat with water, mix this stuff in your garden sprayer with warm water. Spray it on and watch it change color. You probably forgot what color your rig was. Hands down best product I've used. Might not be the best for the wax but if you want your boat it's original color.... this is the ticket.
Emily Brown
Reviewed in the United States on October 6, 2023
2023 was the first year I kept my boat in the water for the entire summer. I was concerned about all of the algae and discoloration that occurred with keeping it in the water. Looking for a solution, I went to Tik Tok and saw a video of someone using this on their boat. This stuff is AMAZING. I will be a repeat customer because this stuff works so well, requires little effort, and works quickly. I am very pleased with this product.
I. Wortsman
Reviewed in Canada on August 19, 2021
Cleaning the boat bottom
Customer
Reviewed in Canada on September 17, 2020
Use it on my boat at the end of the season. Gets rid of water line stain and any growth on the hull. Spray it on with a garden pump sprayer, brush lightly and rinse. Did my 19' boat in 15 minutes with little effort. The first tub lasted 10 years of boat cleaning.
DB
Reviewed in Canada on July 6, 2019
We had dark brown water stains on the hull of our boat. Had tried many products to clean/scrub it off, but none worked. I read about Slimy Grimy on a boating forum. This stuff is amazing. Sprayed it on and watched it almost instantly dissolve the dark stains. Rinsed it with a pressure washer and that's it - done in 30 minutes. Saved us hours of work.
Debbie S.
Reviewed in Canada on November 13, 2018
This product is hands down the best we have found for cleaning our boat hull at the end of every season when a whole summer's worth of that dark staining needs to be removed. We mix it up with really hot water, and then spray it on right away generously and let it soak for 15 minutes or so and spray off with a garden hose and a sharp spray head. Sometimes need to repeat on tougher stains, but overall gets 90% off the first time round.
Customer
Reviewed in Canada on October 22, 2018
Bought this to clean the bottom of my boat that I couldn't get clean no matter how hard I scrubbed with other products.Applied and it started to turn white in 10 minutes. I had to apply twice in some spots and rub a little with a soft brush but barely. The bottom had a permanent stain for over 4 years which is now gone.Simply Amazing!!!Ordered again for the boats and recently bought a new house where I couldn't get a stain out of the shower due to well water. Tried all the standard products. Then I tried slimy Grimy and success. Applied and rubbed of 10 minutes later with zero scrubbing.Love this stuff
DeFelice Family
Reviewed in the United States on January 26, 2018
Hands down, the best stuff to clean the underside of your boat! For years we painstakingly scrubbed with a lot of elbow grease, the underside of our fiberglass hull on the boat. This product was recommended to us, and we were doubtful, since years past we scrubbed and nothing seems to work. This works amazing with little to no elbow grease! And we found another way to use it by mistake. As we filled the bucket in our bathtub, some mixture dropped on the bathroom floor. After we were done scrubbing the boat, (I shouldn't even say scrubbing because we didn't have to scrub very hard) we went to clean up the mess in the bathroom. Much to our surprise, the grout was sparkly white where it had dripped! So now we use it on our floors for the grout as well! Simply amazing stuff. Worth the price, hands down. Slimy grimy is awesome! I would have given it 10 Stars if it went up that high.
RyanM
Reviewed in the United States on December 6, 2016
This stuff works really well! This was the first year I kept my boat on a slip all summer long. Other years I trailered it and only had it the water for 2 weeks max. On vacations. Usually after a few days in the water a simple sponge, brush or magic eraser would demote the scum from the hull. At the end of the year, those items didn't do to much to remove the nasty. I used the slimy grimy with HOT (as hot as I could go) water in a pump sprayer and just sprayed on. Before my eyes I could see the scum disappear from the hull! I only used about 3/4 gallon of my pump sprayer to cover the entire hull of an 18' boat. You clean see the difference in the pictures. And this is without any scrubbing. Just spraying the slimy grimy on and rinsing with water from a hose. Although it does an amazing job, it's not 100% perfect. It did not remove all spots perfectly and the real stubborn areas needed some slight scrubbing with an abrasive sponge. Another thing to note is that slimy grimy works best with hot water. As soon as the water starts cooling down the product looses its effectiveness or speed at eating away the scum. So one must spray on the boat somewhat quickly to cover it all while the water is still hot in the pump sprayer. Overall I will and have recommended this product to other boat owners and will continue to use it every season from now on.
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