- Spray or paint? -
Antifouling for your z-drive is available as a spray or paint. With the spray can, the antifouling is applied evenly and it is easier to get to hard-to-reach areas. Use a spatula to apply antifouling to the boat, then spread with a brush.
There are also two different types antifouling for your propeller and drive: self-polishing antifouling and hard antifouling. Self-polishing antifouling rubs off by itself when the propeller moves. Due to this unique action there is always a fresh biocide layer on the surface. Hard antifouling, on the other hand, hardens after application and forms a binding agent structure containing the biocides. After the biocides have been "used up", an empty binding agent structure remains.
Be sure to explore at length the various propeller and z-drive antifoulings. Choosing the right antifouling depends on the conditions in the area, so no antifouling paint is universally suitable for each propeller / drive. The existing surface also plays a major role. When taking over a boat, for example, be sure to consider which antifouling was previously used.