PROPSPEED Foulfree Multi-Surface Foul-Release Coating for Underwater Components Multi-Surface Foul-Release Coating for Underwater Components Protection Powering Performance Built on Propspeed s proven foul-release technology, the Foulfree Multi-Surface System is designed to protect underwater components from marine growth. Engineered for outboard lower units and bracket assemblies, stabilizing fins and systems, thrusters, RIB tubes, and more, the Foulfree Multi-Surface System provides biocide-free protection that prevents marine growth from taking hold, keeping these components clean and performance sharp. With strong adhesion and seamless application, Foulfree bonds across a wide range of substrates including painted metals, plastics, composites, carbon fiber, and Hypalon. The result is season-long protection with a clear, non-invasive finish that blends below the waterline. The coating is easy to apply and quick to dry, it helps reduce drag, improve fuel efficiency, and sustain peak performance across underwater components. Coverage guide:Surface: The Foulfree Multi-Surface Small Kit will coat a surface of 5.4ft . Coating Set Times:MSprime Dry Time: 10 minutesFoulfree Multi-Surface Cure Time: 12 hoursMeasured at 68 degreeF