Rather than start a new thread, I thought I'd bump this one.
I had the GTV jacked up this morning looking for an annoying exhaust rattle from the rear - turned out to be a lump of metal wedged in one of the rubbers
no idea how it got there
anyway, I did a bit of an underbody check while it was up on the stands. The undercoating is in good nick, really clean and no damage which made me pleasently suprised
until I noticed a thumb sized patch of rust 3" from the sill on the passenger side
(about 3" forward of the door button directly down). The rust is not flaking yet but is rough, the undercoating isn't lifting away from the edges either so hopefully it hasn't spread to far.
I don't really want to be on my back in the cold and snow scrapping all the under seal back, I'd rather wait until summer, so what would the best temporary repair? Is there a 'magic' rust stopper paint or spray that can be applied to bare damp rust/metal? Or do i need to get my blow torch out to dry it up then hammerite it?
I've done a bit of a search and come up with Waxoyl and Ditrinol for the proper repair in the summer, which is best for repairing underseal?