[C320-list] My sailboat has developed a skin condition.

[Mark Hood]

Jeff is correct, FSR is what we use, it works incredibly well for waterline
stains. We used on our Douglas before the 320 when nothing else worked.
That was old gel coat and very porous, hard to maintain a seal against the
ugly brown mustache despite Jeff’s efforts to help us with a polymer
sealant. What we do because of the harbor scum in Salem, MA is to hire a
diver to clean the waterline every month as we can’t stand the brown stain.
Mark Hood

On Tue, Dec 28, 2021 at 7:12 PM Jeff Hare <Catalina at thehares.com> wrote:

> Davis FSR is amazing.  I second that.  One small container will be enough
> for years.Jeff
> -------- Original message --------From: David Prudden <dprudden at icloud.com>
> Date: 12/28/21  12:49 PM  (GMT-05:00) To: C320-List at catalina320.com
> Subject: Re: [C320-list] My sailboat has developed a skin condition. Try
> FSR (Fiberglass Stain Remover). It’s inexpensive and very easy to use. It
> contains Oxalic Acid, which removes stains from fiberglass. It works great
> on the waterline stains as well as other stains.David Prudden#787Sent from
> my iPhone> On Dec 28, 2021, at 11:52 AM, Troy Dunn <troutwarrior at gmail.com>
> wrote:> > Sounds like you are describing staining.   We get it on the
> front of the> hull due to tannins in the water.   We have to use a hull
> cleaner with acid> in it like Mary Kate On and Off to remove the
> staining.   We don’t get> staining where you describe but then again maybe
> yours is caused by some> other mechanism.> > FWIW> > Troy Dunn> Hull#514