Larry, et al, I sail in the Chesapeake Bay and I have an issue with tannic acid. My hull takes on a brown hue much like tea stains. I have found this discussion concerning Poli-glo to be quite interesting. I would like to know, if I go through the trouble of prepping my hull and applying the 6 needed coats of poli-glo, will this eliminate my issue with the staining, or do I now have a nice shinny boat with 'tea stains'? If so, what would happen to the poli-glo once I spray my boat with the oxalic acid to clean off the tea stains? Am I fighting a losing battle? I appreciate anyone's personal experiences on this topic. Skip M-15 'Wild Guppy' 1982 #201 M-10 'Lil Guppy' 1974 #177 -----Original Message----- From: Larry E Yake <leyake@juno.com> To: montgomery_boats <montgomery_boats@mailman.xmission.com> Sent: Sun, Mar 4, 2012 3:41 pm Subject: Re: M_Boats: poli-glo I use Poli-glow on CornDog and have been very happy with the results. The eal key, though, is preparation, especially with a colored hull. CornDog s a 1976 M17, and her yellow hull was very faded. In order to get good esults with the Poli-glow you have to get your gel coat down to a onsistent even color. Rubbing compounds and polishes didn't do the job. had to wet sand the entire hull, starting with 400 grit, then moving to 00 grit, and finally to 1200 grit, which gave it a nice consistent satin inish. Applying the Poli-coat is very easy. It's a clear liquid that you ipe on with a shammy type cloth, starting on one side of the boat, orking your way around, and by the time you've finished the first coat t's time to start on the second. After six coats the hull is coated with clear shiny reflective surface that make the hull look as bright as hen it's wet. Durability has been very good, with only an annual ne-coat touch up to keep her looking like new. Larry Yake