The growth of algae, lichens and mosse often constitute a problem in marine environments. Nanocoatings reduce both water drag resistance and maintenance and cleaning time by 60%. The fuel cost can be reduced by 10 to 15%. Self-cleaning properties above and below the waterline are installed on the substrate. Protection of the boat hull can even restore the original color & gloss, and protects the substrate against UV. Ultra-high scratch resistance, higher chemical resistance are also obtained by using nanocoatings. Nanoparticles enhance the properties of the boat hull in composite material.