wrote in message
...
On Tue, 9 Jun 2009 18:50:01 -0400, "mmc" wrote:


wrote in message
. ..
On Tue, 9 Jun 2009 08:37:59 -0400, "mmc" wrote:


"derry" wrote in message
...
Hi all
I seen there a while back someone had the problem of a swing keel
stuck in the keel trunk.
I have the same problem. and am now at a crossroads with it.

I drilled a hole in the steel keel and used a 800kg ratchet winch onto
an large anchor weight
this pulled the keel down with some effort. I removed the keel winch
and the keel pin.

but still cant pull the keel out with the rust around where the pin
was.
I guess I need some thing to dissolve the rust that will not damage
the gel coat.

I have tightened up the ratchet pressure again and soaked the keel in
diesel. And left it over night to see what will happen .

Anybody got any better ideas on this.

Did you get it unstuck?
Anyone know of anything that dissolves barnacles?


There are commercially available chemicals that disolve barnacles.
Available at any chandelery. Same stuff also works well to clean fancy
automobile wheels. Rinse well, and avoid breathing the fumes though,
it's acid.

Thanks, any idea if it harms gelcoat?


I've used it for years with no apparent problems. I've always been
careful to make sure I do a good job of rinsing, just to be safe.

Just went to the Star Brite site and checked out the MSDS, their barnacle
and zebra mussel remover's active ingredient is hydrocloric acid. Not being
someone that wants to play with hydrocloric acid, I think I'll buy their
mix.
Also checked out the sheet on thier rust stain remover, active ingredient
oxalic. Being not afraid of oxalic acid, I buy wood bleach in the hardware
and follow the instructions for disolving the crystals in warm water. Works
great for grundgy harbor stains and the little jar of crystal makes gallons
of cleaner for something like $7.
Yeah, I'm cheap. or frugal rather.