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Join Date: Feb 2003
Location: Under a boat, in a marina, in the San Francisco Bay
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West Marine branded anti foulings are produced by other paint manufacturers, Petit being one of them. There may be others, I'm not sure. They are not unique formulations but rather existing products that have been re-labled. As such, you'd be better off finding out who makes the specific West Marine product you are interested in, what the comparable Interlux product is and then doing a comparison. But by and large, there are no major performance differences between the major manufacturer's products, as long as you compare apples to apples.