STAR BRITE 081700 Easily Remove Stains Scum Lines & Grime Instant Hull Cleaner, 1 Gallon

This stuff is an absolute game changer. No BS I apply it with a brush to my charterboat once a month. Apply it in 5 minutes, and then rinse it off. Works like nothing else removes all stains and hard water. It's amazing it brings back an old boat from disgusting to glowing. I even use it on my cars to remove sprinkler stains.

MY FRIEND USED IT ON HIS BOATTO CLEAN BLACK STAINS OFF, THEN I TRIED IT ON MY WHITE GUTTERS MADE THEM LOOK NEW, THEN TRIED IT ON MY CARPORT, WORKS GREAT SO I HAD TO ORDER ME SOME

When they say "instant" they are not kidding. This stuff cleans the scum stains off my hull real quick fast. I literally wipe it on with a sponge, let it work for a few seconds and rinse off. Easiest hull clean of my life, will be buying more soon!

Instant isn't even fast enough for the way this product works. Put it on and boom vanish! Definitely a favorite for our panga.

been using for a lot of years. works as advertised

Really like that when you sprayed it on that it cleaned it without very little scrubbing.

The only thing that really works!

Works as advertised. Best hull cleaner I've used.

Yes it cleans, but after two applications and a power rinse the scum marks are still there.

If it sounds too good to be true it likely is. I purchased this product expecting to scrub but it was absolutely worthless. I have a waxed fiberglass hull that had been in a TN lake for a week. The typical scum line. The power washer using water only did a much better job.. I read the reviews, they have to be bought and paid for. I don't remember when I have purchased a product that did not work at all. In my opinion a scam, save your money!!!!