Features May 2012 Issue

Antifouling for Aluminum Boats

Are zinc-silicate paints good for protecting aluminum hulls?

When Achim and Erica Ginsberg-Klemmt upgraded to an aluminum sloop, they had to confront one of aluminum’s major pitfalls: copper-based bottom paints don’t like aluminum. After years of good performance from a foreign-made, expensive-to-import inorganic zinc-silicate coating called Inversalu, the couple sought an affordable option distributed in the U.S. Their research led them to a PPG Amercoat product, a hard two-part zinc-silicate paint called Dimetcote 21-5. Practical Sailor’s report covers their prep and painting experience, a look at how zonc-silicate paints works, and Dimetcote’s performance after eight months in Florida waters.

To continue reading this article, you must be a paid subscriber.

Subscribe to Practical Sailor today and save 72%.

Here's what you'll get:

  • Immediate access to this article.
  • Access to more than 2,000 Practical Sailor articles like this.
  • Each new monthly issue delivered to you.
  • Recommendations of the best electronics for your boat.
  • Money- and hassle-saving tips for finding your dream boat.
  • Help installing new equipment and gear so you'll get it done right the first time!
  • Ratings on the newest paints, coatings and materials to keep your boat ship-shape.

Your satisfaction to Practical Sailor is guaranteed. Subscribe today to see why hundreds of thousands of sailors trust us as their #1 source of boating information.


Subscriber Log In

Forgot your password? Click Here.
Already subscribed but haven't registered for all the benefits of the website? Click here.