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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.

We do not recommend using universal thinners. The use of a thinner with an unknown composition may result in loss of adhesion, lack of proper flow of paint and varnish defects.

Possible causes

• Wrong surface preparation,
• Skipping the primer in the system application process,
• Use of universal thinners or replacements ,
• Paint incompatibility.

How to prevent

• Correct surface preparation (grinding, clearing, degreasing),
• Use primers which improve adhesion of paints,
• Use thinners which are dedicated to each paints,
• Use of paints which are compatible to each other.

How to remove

• Grind, clean and paint again.