use a two part epoxy primer.
SilverStude wrote:
> 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