Plastic Bottom Paint? “Just one word: Plastics.” That line from the movie The Graduate still garners a few chuckles, but in the world of non-toxic bottom coatings, it may become more than a laughing matter.
name is derived from our friends in the San Francisco Bay area, there’s a Northwest tie-in with the corporate oﬃces in Washougal, Washington. This high tech solution is said to solve not only antifouling chal-
One key to the HVIF thermoplast powder coating is the plasma spray system, which applies the coating with heat and pressure, resulting in a smooth surface impregnated with copper. Bay Area Thermo & Coatings are licensed contractors of an exciting process termed High Velocity Impact Fusion (HVIF) patented by Reintjes Marine Surface Technologies to apply an EPA-approved anti-foulant powder coating called Tefcite®. The technology combines the durability of a thermoplastic powder coating with the convenience of a portable plasma spray technology. Although the corporate
lenges in an environmentally responsible way, but prevent ﬁberglass blistering, electrolysis and, on metal boats, corrosion. And there’s a track record. In 1988, inventor Larry Weidman applied Tefcite® to the Peryton sailboat in Florida, after a 16 year hull inspection (www.baythermo. com/literature), the sailboatshowed no signs of fouling or hull blistering. Traditionally, the basic process for applying thermoplastics would
GETTING RID OF ALL OUR ODDBALL STUFF!
One of a kind, left overs, non-current RIBs, RIBs with consoles, soft bottoms, fixer boats. Outboards: trade-ins, runners, basket cases, 2-stroke and 4-stroke.
be electrostatic spray and baking of the coating onto the surface in a industrial oven. While thermoset materials such as epoxies rely on a cross-link chemical bond to a given surface, thermoplastic coatings delivered by HVIF plasma spray are fuse bonded, which is what happens when the substrate and the coating thermoplastic cool and solidify together after it is applied. The plastic hull coating, Tefcite®, is formulated with high copper-content, approximately 58%, which is embedded within the polymer matrix primarily composed of polyamide 12. The resulting polymerbased hull coating leaches copper at a very slow rate, which is why the Environmental Protection Agency (EPA) of Washington and Oregon approved the product for use as an anti-foulant marine coating. The recent EPA-approval and product registration of Tefcite® combined with the portability of the plasma spray system allows the HVIF technology to come to a boat-
yard near you. The ultra-low leech rate may make it an environmentally sensible way to continue using
Now portable, the plasma system can be used in a boatyard. copper as an antifouling agent. There’s much more on the technology at www.baythermo.com. Bay Area Thermo & Coatings, P.O Box 382, Washougal, WA. Phone 415-706-7480. Reintjes Marine Surface Technologies 3800 Summit St. Kansas City, MO 913-207-2265.
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Northwest Yachting covers yachting and boating on the west coast of the United States and Canada