Fiberglass Boat Hull Cleaner, 32oz Marine-Grade Stain Remover & Restorer, Deck Cleaner for Boats, Pontoons, Sailboats, Pro Wash Cleaning Supplies

We had some red residue from a local lake. Had tried scrubbing with various cleaners with no luck. This and the deck cleaner were amazing. Leaf stains gone water stains gone. Now both are my go to. Also used the mold mildew remover on vinyl seat cushions and it works like a charm! So glad I found this company. Now my go to products.

The boys at the marina did a poor job of cleaning my boat, so I did what I should have done in the first place and cleaned it myself. I got a sprayer attachment from Home Depot that fits on top of the bottle and has a battery powered sprayer with adjustable wand. Started with a 3-foot-wide pattern from the bottom of the hull up to the chine, then waited a couple minutes. Picked up the hose to rinse it down and streams of brown were already dripping off! Had it not been for a constantly shifting breeze, I'd have finished my 18-foot bow runner in less than a half hour. That brings me to the warning part. This has oxalic acid in it, which will irritate and potentially cause great harm to soft tissue if inhaled, swallowed, gets in your eyes, etc. I caught a bit as the wind shifted and inhaled some fumes. Not much, but it took ten minutes of fresh water & fresh air to get myself right! I recommend wearing a mouth & nose mask AND a full face mask to protect breathing passageways and eyes.

This is by far the best product for cleaning fiberglass. Our boat in the marina gets salt water and dirt grime that gets into all crevices. After applying the Fiberglass boat Hull Cleaner and letting it sit for 5 minutes, the grime in the cracks lifted out. I used a simple scrubby sponge for difficult algae build up. Absolutely an amazing product. I will buy it over and over again.

Using this on a fiberglass shower floor where stained from previous owner. I have tried everything for the past 5 years and no cleaner has touched this stain. I have applied this twice and the stain is lightening. I'm applying a third time to see if it finally disappears.

Cleaned the "mustache" off of my white bootstrap. Worked perfectly. Ordering another bottle today.

Used the entire bottle per the instructions and it made no difference at all ! I’d do zero stars if I could , late delivery too so I wouldn’t expect it on time if needed .

I recently acquired a 30 year old boat and it was never deep cleaned so I figured I would try this product after watching a YouTube video. I sprayed the boat down as instructed. I did not notice a major difference. There was still a lot of hard water deposits on the boat. Also, this stuff is strong and needs to be used outdoors. I was in the driveway spraying it down and some of the vapors were making me cough so much that I had to stop and step away for a few minutes.

This cleans fiberglass tubs amazingly. It cleaned rust off the fiberglass with just one application. I recommend wearing goggles and a mask that can support harmful vapors.

2010 white boat, this cleaner made the boat go from yellow aged back to bright and white again. Best cleaner we have ever used.

Very good product

N'a pas été capable d'enlever des taches noires sur la coque blanche de mon bateau. Complètement inutile !