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Pettit Hydrocoat Ablative Antifouling Paint

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List Price: $95.99
Starting At: $64.21
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Pettit Hydrocoat Waterbased Bottom Paint

Pettit Hydrocoat is known as an advanced water-based ablative paint. Hydrocoat’s features and benefits include year-round protection, the formula is self-polishing, and cleanup is easy. Its ease of use includes bypassing the pre-sanding stage. This ablative paint is also environmentally friendly as there are no harsh solvents found in most bottom paints, so the formula is easy to apply, takes fewer steps, and water, not solvent is used to clean brushes and sprayers. Pettit Hydrocoat ablative antifouling marine paint is durable to withstand frequent trailering, beaching, and launching, too. Hydrocoat’s ablative surface is formulated to wear away over time, to expose fresh biocides and eliminating paint buildup. Another benefit: its water-based formula allows unlimited dry time to launch so boaters can paint as late as Fall and achieve optimal results.

Pettit Hydrocoat meets and exceeds all current local and state environmental regulations.  

Key Features:

  • Self-polishing
  • 40% Cuprous Oxide
  • Copolymer Ablative technology
  • PTFE for slick fast finish
  • Multi-season Ablative
  • Minimal Odor, Easy Clean-up with Water
  • Environmentally friendly
  • Comparable to Interlux Micron CSC, and Pettit Horizons


  • Type: Water-based ablative
  • Recommended Usage: All fouling waters
  • Colors Available: 1240 Blue, 1840 Black
  • Drying Time: To overcoat 3hrs; To launch; 6hrs. @ 70°F
  • Number of Coats Recommended: 2-3
  • Coverage: 490 ft2/gal
  • VOC: 150 grams/liter
  • Biocide: Cuprous Oxide 40.43%

Associated Products:

Pettit Protect Epoxy Primer - Primer for bare fiberglass applications

Pettit 120 Thinner - For surface prep

How To Apply Pettit Hydrocoat Bottom Paint

Hydrocoat is easily applied using a brush, roller or sprayer. For rollers, use a high-quality short nap (maximum 3/16" nap) roller cover. Apply using thin coats, as over-application will cause surface imperfections and shorter wear. Before applying, mix paint thoroughly. Clean and properly prepare surfaces prior to painting. TIP: For the smoothest possible finish: thin the paint 5-10% with clean fresh water. Wet the surface with fresh water. This will provide a truer color and smoother finish.

  • Application Methods: Brush, Roller, Airless or Conventional Spray.
  • Number of Coats: 2 minimum with additional coat at waterline recommended.
  • Dry Film Thickness: 1.5 mils (3.75 wet mils)
  • Coverage: 430 sq. ft/gal.
  • Application Temp: 50°F Min. / 90°F Max.
  • Thinner: Clean, fresh water
  Temp   To Touch   To Recoat   To Launch
  90°F   1/4 HR   1-1/2 HR   6 HR
  70°F   1/2 HR   3 HR   10 HR
  50°F   1 HR   6 HR   16 HR

*The above dry times are minimums. Hydrocoat may be recoated after the minimum time shown. There is no maximum dry time before launching.

Application Systems

  • Previously Painted Surfaces
    • If the previous coating is in good condition, thoroughly sand with 80-grit sandpaper then solvent clean with Pettit 120 Thinner to remove residue. 
    • Apply two finish coats of Hydrocoat.
    • If the previous coating is soft or in poor condition, remove to the bare surface by sanding or using paint remover.
    • Proceed with appropriate bare system as described below.
    • Old tin or copper copolymers or Teflon-based antifoulings should be sanded thoroughly with 80-grit sandpaper to remove the chalky outer surface.
    • Wipe clean of sanding residue, then over-coat directly with Hydrocoat.
  • Bare Fiberglass
    • All fiberglass, regardless of age, should be thoroughly cleaned with Pettit 92 Bio-Blue Hull Surface Prep or de-waxed several times with Pettit D95 Dewaxer. Proceed with either sanding method or non-sanding method:
    • Sanding Method:
      • After the surface has been dewaxed, sand thoroughly with 80-grit paper to a dull, frosty finish.
      • Rewash the surface with Pettit 120 Thinner to remove residue.
      • Apply two coats of Pettit Hydrocoat.
    • Non-Sanding Method:
      • Thoroughly clean, de-wax and etch the surface with Pettit 92 Bio-Blue Hull Surface Prep using a medium Scotch-Brite pad in a swirling motion.
      • Rinse all residue from the surface and let dry. Make sure the entire surface has a dull, frosty finish.
      • Wipe surface to remove any excess moisture.
      • Apply two thin coats of Hydrocoat.
  • Barrier Coats
    • To render the bottom as water impermeable as possible, prepare the fiberglass surface as mentioned above (sanding method).
    • Apply two or three coats of Pettit Protect High Built Epoxy Primer per label directions.
    • Apply two thin coats of Hydrocoat,
  • Bare Wood
    • Bare wooden hulls should be sanded thoroughly with 80-grit sandpaper.
    • Wipe clean of sanding residue with Pettit 120 Thinner.
    • A coat of Pettit 6627 Tie-Coat Primer thinned 25% with Pettit 97 Epoxy Thinner should be applied directly to the bare wood.
    • Allow to dry for four hours.
    • Apply two thin coats of Hydrocoat.
  • Previously Painted Wood
    • Thoroughly sand with 80-grit sandpaper.
    • If priming is necessary on bare wood spots, apply a touch-up coat of Pettit 6627 Tie-Coat Primer thinned 25% with Pettit Epoxy Thinner.
    • Apply two thin coats of Hydrocoat.

Application Tips

  • Hydrocoat does not require sanding between coats.
  • Slight variations in color and surface texture are not uncommon and will not affect performance.
  • When spraying, do not thin Hydrocoat more than 10% or inadequate paint film thickness will occur.
  • Burnishing the surface to create a slicker finish should be done with 400-600 grit wet-or-dry sandpaper after the coating has dried for seven days.
  • Do not use this product on aluminum hulls and outdrives.

pdficon.png Click to Download Pettit Hydrocoat Bottom Paint Application Instructions

California Residents: warning sign WARNING Cancer and Reproductive Harm -

Warranty Information





Google Product Type:
Google Custom Field 2:
Paint Type:
Ablative Antifouling
Number of Seasons:
Multi Season
Antifouling Type:
Copper Based
Is Boat Trailerable:
Hull Material:
Fiberglass, Steel, Wood
Water Type:
Brackish Water, Fresh Water, Salt Water
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