It is strongly recommended to strain TotalBoat Wet Edge with a fine paint strainer prior to applying paint. This will help to collect any clumps, hairs, and larger pieces of dust or dirt that may happen to fall into the paint, as well as any other debris. Fine paint strainers are generally around 190 microns, while medium paint strainers are between 220 and 260 microns. An ultra fine or super fine paint strainer may also work, but due to the viscosity of Wet Edge, it may not strain the paint very quickly.