Bottom Painting Your Boat ( Beginner Tutorial ) - Boat Restoration Project On 27" Center Console

What Is Bottom Paint?

Bottom paint is a paint or coating designed to discourage weeds, barnacles, and other aquatic organisms from attaching themselves to the underwater portion of your boat's hull.

Bottom paints have traditionally accomplished this by including a biocide, with copper being the most commonly used today.

In general, the more copper or another biocide a paint contains, the more effective it is.

Copper replaced tin, the previous biocide of choice for decades, now banned in most marine applications due to the environmental damage it caused while leaching into the world's waters.

While copper may still be king, the latest generation of eco-labeled bottom paints utilizes little or no copper, responding to the increased scrutiny copper-of copper-based paint is still an environmental pollutant.

Who Needs It?

Applying bottom paint is pretty much the rule if your boat stays in the water year-round or during most of the boating season.

For vessels left in the water for short periods (that two-week summer vacation, for example) or that are stored out of the water (trailer, lift, dry storage facility), a good coat of wax and regular cleaning is typically all that's needed to maintain a clean hull.

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