I have had a few arguments about using ancient antifouling. Here is the boat as she came out of the water after 12 months, the last 3 sitting in the marina. The paint was 10 year old ABC 3. Mostly soft growth.




I tried using Sharpie permanent marker on the prop after having rather mixed results from Propspeed. It was fine for the first 6 months even though I sand blasted the prop a few times running aground, but then gradually lost its effectiveness. I think it would be fine on a cat where you could sit on the sand every 6 months and refresh it.





This time I will use Velox on the prop. It has had some success on the Gold Coast where high salinity and warm shallow water plays havoc with antifouling. A bit easier to apply than Propspeed and cheaper, $250 would give you 4 uses on a 16 inch prop. The Gori is a fine prop but it is really hard to keep shell out of the gears. I load them up with grease and hope for the best. Anyone know of an effective way to deal with this?