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  • Normal to Heavy Buildup: Ready to Use to 1:1 Dilution (64oz per 1 Gallon Water)
  • Medium Buildup: 1:3 Dilution (32oz per 1 Gallon Water)
  • Light Buildup / Regular Maintenance: 1:15 Dilution (8oz per 1 Gallon Water)
  • Spray Bio-Kleen Fiberglass Cleaner onto area affected with water spots and water stains. Allow product to dwell for extremely hard to remove stains.
  • Agitate lightly with a Boat Body Brush with medium to soft flagged tip bristles
  • Rinse
  • After removing water spots and stains with the Bio-Kleen Fiberglass Cleaner, apply Bio-Kleen Polish & Sealant to create a protective barrier against the water stains
  • Maintain with Bio-Kleen Qwik Shine and a Micro-Fiber Towel

  • HEAVY BUILDUP DIRECTIONS: Spray on surface, let stand 5 minutes, agitate with a soft bristle brush and rinse thoroughly. For heavy lime, oxidation and algae deposits longer dwell time or a second application is recommended. Hot water always increases efficiency. Immediately follow up with an application of Bio-Kleen Polish & Sealant to prevent future build up and create a layer of UV protection and shine. Ready to use or may be diluted per application.




    Overall Customer Rating of 52 Reviews:
    Boat cleaning products

    Good Stuff

    Rating:
    Pros:
    • Biodegradable
    • Price
    • Easy to use
    Cons:
    • Left slight film on side of boat
    I wanted to use it because it was biodegradable and not an acid cleaner. After using it, most of the boat got cleaned, however, it still left a slight film line on the side of the boat. Even after spraying numerous times, I could not get it out. However, as I said, most of the boat got cleaned.

    La Crosse, WI

    Rating:
    Pros:
    Cons:
    Great stuff. Easy to use. Leaves a great sheen. After using it last summer on our houseboat, this was the first time we didn't have mildew under the duck bills in the spring when we returned after the winter. This year I also used the sealer.....this boat glistens!

    Best Damn cleaner ever

    Rating:
    Pros:
    Cons:
    I called to get a cleaner for my aluminum fuel tank that had been in a flood and had oxidation on the interior. There was no way to physically clean the interior as there was limited access and had baffles inside. I had thought that the aluminum cleaner would work best, but the people at bio-kleen suggest the fiberglass hull cleaner would work best.

    I used It diluted as they suggested, and sloshed it around and then let it set for about

    30 minutes. Then rinsed it out. Upon inspection, most of the oxidation was gone and there was a fresh line where the cleaner had sat in the tank. One more application and all the oxidation was gone ! Fuel tank is back in my car and the car is running again without any fouling.

    I have also used this to soak and clean some SDS drill bits that had been flooded and were so rusted I was about to throw them away. I soaked them in a strong solution and wire brushed them. I let them sit over night and the next day they looked almost like new.

    I have been using the remaining product for cleaning a host of things and am always amazed at how good it works.

    This is truly an amazing product.

    California

    M006 cleaner

    Rating:
    Pros:
    Cons:
    Cleaned the discoloration below the water line pretty well after leaving for 10 min. Not as good as the acid cleaner but does not damage the galvanized trailer. Yet to determine how it will work on marine growth.

    Ohio

    Best Fiberglass Boat Cleaner EVER!

    Rating:
    Pros:
    Cons:
    This product is amazing to say the least!!!! Hands down better than anything I've used in the past. Great price and friendly customer service. Deserves 10 stars!