"SilverStude" > wrote in message
news:G6GGg.93749$LF4.28204@dukeread05...
> A couple years after painting this car in the late 90's, blisters started to
> appear on the DS fender. The problem got so bad that the car was sidelined
> until recently, when it was decided to try and remedy the paint problem.
> After the shop stripped the paint, and wiped it down, a stain started to
> appear where the blisters were. It was determined that this stain is silicone
> brake fluid wicking it's way into the fender.
>
> The area in question has been treated with Prep-sol, to no avail. The next
> level was an aircraft quality silicone remover, which does ok on the surface,
> but the stains bleed back up after a couple hours. There is also another
> product, we used, that is supposed to penetrate, combine with and remove
> silicone, but it appears to have 'energized' the stuff and now, it's spreading
> further.
>
> The origin was obviously the master cylinder and the fluid has wicked it's
> way around to the front of the car now
> Anyone have any suggestions as to what approach to take on removing this
> stuff from the panels, so it can be painted. Is there anything you can use
> over it to seal it in?
>
> Replacement of the panels isn't an option.
>
> Any advice wiould be greatly appreciated... Mine is "never use silicone brake
> fluid"
>
> thanks
> BobJ
> Great Falls, VA

Interesting problem caused by a poor substitute for brake fluid.

Use your silicone remover as a wash inside and out and with a high powered shop
vacuum suck it on through the panel and bake for 4 hours. Repeat until you no
longer see the stain. Then do it again with slow lacquer thinner and then
re-sand with 36 grit and wash and vacuum again, then bake again. Now re-resin
(epoxy) the entire panel, reshape with 36 grit and re-resin again. Rough it up
with 180 grit and bake then apply a self etching primer and finish as normal.

--
Dad
05 C6 Silver/Red 6spd Z51
72 Shark Black/Black/4spd