A number of years ago, a friend who is a physician, and also the owner of a big Cape Dory, gave me a bottle of Tetracycline antibiotic that was past its expiration date and told me to mix it into my bottom paint. That’s what he said he did for anti-slime additive, back in the days before paints with SR in the name, when you had to pay the marina to put anti-slime additive in the paint.
Damn! My bottom was really clean between bottom paintings. I have since been told that you can purchase antibiotics for use on horses at many farm stores that cater to stables. I suppose it is not a good idea to tell your local version of the EPA if you chose to do this. (And in case anyone from the government is listening, I use Petit Ultima SR 60 on both my boats.) Rick Brass Washington, NC From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jean-Francois J Rivard via CnC-List Sent: Thursday, March 19, 2015 9:03 AM To: cnc-list@cnc-list.com Subject: Stus-List Bottom paint -ingredient change In Practical Sailor's tests" Irgarol has not been shown to extend the active life of antifouling paints in our tests, and we’ve had a hard time discerning any enhanced slime resistance in Irgarol-boosted paints after six months in the water."
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