We've had great success with PropPurr™ which is an antifoulant (anti-stick) that was designed just for bronze
props. It's much less expensive and simple to apply. PropPurr™ chemically bonds a silicone layer to the copper surface of bronze
(or brass). It does not use acids or acid primers that eventually degrade the bronze.
The main thing is to sand the prop to make it as smooth as possible and to expose fresh metal. Clean away the sanding
residue. And finally apply the PropPurr™. One person can do the job in less than 30 minutes, there is no rush between application steps. There's no need for professional workers dressed in moon suits. And best of all, you can launch in an hour. It's easy to remove the next season and only a light sanding
is required prior to reapplication.
The PropPurr™ coating is extremely thin, just enough to make it slippery. Growth and settling that does occur can be hand-wiped away. Many times just rotation of the prop cleans it. If barnacles
start to grow, they tend to be very small, ball point pen size. Most of the testing was done in the Caribbean
and in the Chesapeake.
The developer focused on making a coating that minimized the environmental impact. There is no waste when making PropPurr™ and the product introduces a minimum amount of silicone polymer into the environment
. There are no pesticides in PropPurr™.