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.
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 did the polyurethane topcoat become dull?
Possible causes
Too short time for evaporation of the thinner,
How to prevent
Maintain the right conditions for complete evaporation of the thinner,
How to remove
Mat the surface, degrease and apply the paint according to the rule (right conditions and thinning proportions)