Let TotalBoat White Knight Fiberglass Stain Remover sit on tough stains for 10-15 minutes and its non-abrasive formula does the work for you to remove exhaust, rust, scum, waterline and other ornery stains with no hard rubbing or scrubbing needed, and without damaging gelcoat. Great on hulls and transoms. Available in a 16 oz. container.
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Use rubber gloves when applying. Wet the area before application. Always test in a small, inconspicuous spot before attempting to use on a large area. Using a brush or rag, apply a thin layer of TotalBoat White Knight to the surface and allow 10-15 minutes for it to work, then scrub with a soft brush or sponge. Rinse the surface thoroughly with water to remove White Knight before it dries. Some tough stains may need a second application. For cleanup, use water.
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Removed brown stain from white hulls on three small boats. Stains were gone in about one minute. Still have half the 16oz left!
Easy, and fast!
Wet the boat, brush it on kick back for a few. Grab a scrub brush and the hose and the grime disappears. It worked great for the waterline and was serviceable in breaking down the soot stains from the diesel exhaust. I'd say it's comparable to On/Off but more user friendly since it's not as strong of an acid that works just as good
This product exceeded expectations. Makes quick work of cleaning fiberglass hull. Apply, rinse, and wipe. Awesome!
So I was skeptical going in as I had years of staining in my white SeaRay hull. This stuff was so easy to apply and the stains vanished in front of my eyes. I'm a believer and I still can't believe it!Either way thank you for a great product !
This stuff works like a champ. Just brush it on, wait 15 minutes and rinse off. I like the gel consistency because it stays where you put it. On deep tough stains, it may take a few coats. And, it's cheaper than other brands.