Finsulate Speedgrade was developed for planing yachts and for commercial speed vessels. Speedgrade, as the name suggests, is optimized for speed. Which entails that this product variant may get some on-growth of organisms, especially in salty waters. However, that on-growth will be quite light and easily removable with the tools delivered: Either in the water or when lifting the yacht out of the water, then by using a high-pressure cleaner.