Metal surface preparation – sanding the surface
As is the case with all surface coatings the preparation of the surface to be coated for the application of Propspeed is key. The old Propspeed coating needs to be removed completely before the new system can be applied.
Any previously applied Propspeed on propellers, rudders and drive shafts should be high pressure cleaned, removing all marine foul from surfaces, then be allowed sufficient time to thoroughly dry.
Propspeed can be removed by sanding using 80-grit sandpaper. A dual action or air driven sander can be used and difficult areas wet sanded by hand.