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Antifouling selfpolishing

The self-polishing antifouling paint is a product recommended primarily for protecting the hulls of fiberglass sailboats.

It is the most popular product from the Sea-Line brand for protecting the hull from fouling. For over 10 years, it has been a bestseller both in Poland and in many European countries.

ColorCapacityCode
grey750 ml300005599
grey2,5 l300005477
dark blue750 ml 300005602
dark blue2,5 l 300005479
red750 ml 300005600
red2,5 l 300005481
black750 ml 300005598
black2,5 l 300005480
Antifouling selfpolishing

Technical informations

Color

Exposure of a freshly applied antifouling paint to moist air can lead to color change. The discoloration is only superficial and does not affect the effectiveness of the antifouling paint. Due to the content of copper oxide, a small color difference between the parts of the antifouling paint is acceptable.

Application method

Manually:

  • brush
  • roller

Spray:

  • airless spray

Product description "Antifouling selfpolishing"

  • Suitable for salty and regular water.
  • Suitable for sailing and motor boats traveling with a maximum speed 40 knots.
  • For use on steel, wood and laminate hulls.
  • Do not use aluminum.
  • Easy to apply.
  • Fast drying time.
  • Thinning is not recommended because it reduces the effectiveness of the paint.
  • Paint is composed of copper oxide and resins. It does not contain tin compounds.
  • As a primer coat, use Sea-Line® epoxy primer  – for example:  Sea-Line® Antisorrosiv protection 4:1, Lightprimer 5:1, Universal primer 1K.

Antifouling selfpolishing - instructional video

Basic information

Type GRP laminates, wood, Steel
Place Below waterline
Function Antifouling paint discourages the growth
of barnacles, weed, and other water life on the
submersed hull of the boat.
Application brush, roll, spray gun
Thinning * No
Theoretical coverage For 1l 8-9 m2 for
115 μmWFT/
50 μm DFT
Coats number 1 – 3
Time between layers Min 5 h  –  max 7 days
Dry to launch: Min 12 h

Surface preparation

NEW VESSELS WITHOUT PAINT COATINGS OR ANTI-FOULING PROTECTION

If anti-fouling is being applied to a vessel without any paint coatings, it is advisable to first apply systems that create protective layers. This means that different protection will be applied to different surfaces:

  • Gelcoat (polyester laminate) will require an anti-osmosis primer. In this case, Lightprimer or Sea-Line HS epoxy primer can be used.
  • Steel requires anti-corrosion protection. We recommend Sea-Line Anti-Corrosion 4:1 epoxy primer.
  • Wood can be protected against water absorption, for example, by using Lightprimer epoxy primer.

EXISTING ANTI-FOULING COATINGS

If the vessel has old anti-fouling coatings, first check the compatibility between the new paint and the previously applied paint. If the paints are incompatible or the coatings are in poor condition, they should be removed and treated as for new units without antifouling protection. If the paints are compatible and the coatings are in good condition, wet sand the surface with P120-P240 grit sandpaper before applying new coats. After sanding, clean and degrease the surfaces using Sea-Line Cleaner.
If the existing coating is in good condition and the type of antifouling paint previously applied is unknown (excluding paints containing Teflon), wet sanding the surface with P120-P240 grit sandpaper is recommended. Then, use Sea-Line Universal Chlorinated Rubber 1K Primer as a release agent; see the primer’s technical data sheets.

You have questions about the product - Antifouling selfpolishing

    Thinning notice:

    In the case of high temperatures and the need to thin the antifouling paint, a maximum dilution of 0-5% (by volume) is recommended.
    Dilution and the application method directly affect the thickness of the antifouling paint layer.

    Special attention should be paid to obtaining a specific coating thickness (100 μm DTF), which ensures the effective operation of the antifouling paint.

    Also check

    Our FAQ answers to frequently asked questions

    Why are the streaks formed?

    Possible causes

    • Wrong viscosity and spraying technique,
    • Failure to maintain proper evaporation time and thickness of layers,
    • Incorrect spraying pressure,
    • Too low temperature of varnish, surface or space ,
    • Wrong thinner or hardener.

    How to prevent

    • Apply the right type of application method indicated by manufacturer,
    • Use working spray guns,
    • Both the object and material must have room temperature of 20ﹾC,
    • Apply correct proportion of base and hardener.

    How to remove

    • Grinding and polishing,
    • Grinding and painting,

    Can I paint the bottom of the boat with polyurethane paint?

    Yes, you can paint the bottom of the boat with polyurethane paint due to its high mechanical strength. We recommend this solution when the boat is not launched for a long time and is not exposed to fouling.

    Why the paint does not have the right flow?

    Possible causes

    • No thinning, wrong thinner or wrong amount of thinner
    • Wrong type of roll or brush (wrong bristle lenght)
    • Applying too much or too Little paint,
    • During painting process temperature was too high or the air was too dry,
    • Incorrect preparation of too porous surface,
    • Incorrect proportion of thinner.

    How to prevent

    • Use a brush/Toller suited to the type of surface or paint,
    • Use thinner which is dedicated to the type of application and paints
    • Use thinning proportions which was indicated by manufacturer,
    • Paint in right atmosphere conditions indicated by manufacturer,

    How to remove

    • Grind, clean and paint again.
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