More issues with the paint stripping- and, at this late stage, it’s a bit worrying. I’d improved* the bonnet fit by adding a bead to the leading edge. The bead was thin-wall tube, and during the paint stripping it somehow filled with caustic dipping solution, which wasn’t neutralised.
It’s only now, once primer is applied, that it’s started to bubble out. Typical. Though, to be fair, Murphy’s Law says that it should really only show up once the car’s painted and assembled- so I guess we’re kind of lucky here.
That’s not pretty.
Righto. Grind it back, clean it up, replace tube with steel wire. Not pictured: fill all gaps with epoxy.
*some people might not use the word “improved”, but it’s not their car.