Bottom Paint

Discussion in 'Boat Yard Basics' started by mdantoni, Jun 17, 2010.

  1. mdantoni

    mdantoni I Love!

    I'm new to the site but it has already been very helpful. A lot has been written regarding bottom paint or coating. I have a 15'4" Gheenoe that I use to fish the marshes of S. LA. I'd like to add some bottom protection against the oysters. I recently came across a product from Goop called Coat-It. The description of the product appears to be just what I need. Here's the description.
    Two-Part Epoxy —
    With Kevlar® for Added Endurance
    Get Coat-It — a superior, waterproof epoxy sealer that will protect your boat bottom or truck bed. Coat-It cures to a thick, smooth, black graphite coating. Coat-It is available in 2-pound and 8-pound kits.
    Versatile: Bonds to aluminum, steel, fiberglass and wood.

    Easy to use: Just pour, stir, and apply.

    Strong: Reinforced with Kevlar fibers for extra strength.

    Practical: Enables boats to glide smoothly over debris and rocks.

    Fast drying: Sets and dries completely in 10-12 hours.
    2 lb. kit covers 20 square feet
    8 lb. kit covers 80 square feet

    The web site is

    I'm looking for someone that might have used this product. Any advice on this subject is appreciated. Thanks
  2. firecat1981

    firecat1981 BBA Counselor

    Looks interesting, how much for a 8lbs kit? Also you may want to find out if you need to grind down your gelcoat in order for it to adhere.

  3. Ed_B

    Ed_B I Love!

    #11 suggest that the best application is a bare surface.

    2# = $26.95

    8#= $67.95
  4. Frank_Sebastian

    Frank_Sebastian Well-Known Member

    For a long time we have made our own epoxy graphite mix to protect airboat bottoms as well as skiffs. The kevlar will turn "fuzzy" if exposed to severe abrasion. All epoxy is not equal, so what we use is the hardest we know of and after mixing the epoxy, we add about 30% by volume of graphite powder.

    If you are interested in doing it yourself with ingredients purchased independently post back here or do a search of this site.

    Best regards,
  5. DuckNut

    DuckNut Brandon, FL

    I agree with Frank on the fuzz and the kevlar gets its benefit from the long strands. Micro strands wold seem to do nothing for protection - just sounds like a filler.

    The other two I know of:
    Graphite: Great stuff for making a boat slide. It is tough when mixed with epoxy and lasts a long time. Downside is when you need to recoat - a REAL nasty and messy job.

    Aluminum: aluminum powder when mixed 25-30% by volume will add abraision resistance to whatever it is put on. It will knock the socks off graphite for abrasion but does not increase the slickness of the surface like graphite.

    Of the two - if you want to protect your hull from scrapes - go with aluminum. Nothing will stop an oyster from doing what they do best to a boat during a high speed impact.

    West System has aluminum powder.