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Several readers have forwarded me a press release on the latest high-tech nano-coating - a spray on glass coating designed to protect a wide range of surfaces from . . . well, just about anything. According to the press release, the nanotechnology product, developed in Turkey and owned by a German company, yields a harmless spray that can protect virtually any surface against dirt and mildew and weathering for up to a year.

The bottom paint update coming up in the March issue of Practical Sailor will feature more than a dozen new antifouling paints, and many of them are no-copper or low-copper varieties. While paint manufacturers could potentially save a bundle by reducing the copper content in their paints, the costs associated with bringing an effective alternative biocide to the market are a big impediment. (No, simply adding cayenne to a cheap bottom paint doesn't work.) If there is to be any motion in a green-paint direction, government policy will be the prime mover.