Quote:
Originally Posted by Vic1947
I really hate chasing pinholes using a welder... MIG or TIG. Even using a copper spoon to back up the weld, it seems like the pinholes explode into an even larger hole that takes forever to close up. I've been known to thoroughly clean / scuff the backside of the panel and put down a couple of layers of fiberglass cloth or mat to just cover the affected area. Then be sure to brush on a couple of coats of epoxy primer to prevent any moisture from getting between the glass and the metal. As long as you don't need to weld something else in the general vicinity, this is an effective repair that doesn't warp the surrounding metal.
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I came to the conclusion after the 5th hole just as you described that the rest of them were not worth chasing as there so small the primer will cover them up. Did a bit more skuffing on the inside then another coat of Gem.
Do you recommend the K2 primer over the Gen or Metal Etching?