Propspeed is available in a variety of quantities depending on the size and number of props that need to be coated. Any previous coatings and fouling must be removed and the prop abraded with 80-grit sandpaper before wiping down with solvent. Mayes explained that the key to a successful job is careful preparation. The proper application of Propspeed is critical to its performance and longevity, so I took photos while sales rep Keith Mayes showed me how it was done. Full disclosure: Propspeed offered, then provided, the product and application to me at no cost.

I had seen it on other boats in the yard but had always been skeptical of the manufacturer's claims.

When Seaglass, my Grand Banks 32, was out of the water just over a year ago for routine maintenance, it coincided with a chance to try out Propspeed, a special type of antifouling for propellers.

A fouled prop can cause a bunch of problems - from reduced top speed, increased fuel consumption, and unwanted vibration.