Had a reaction where the black paint I just put on and the red paint over primer I put on a week ago suddenly wrinkled and can whipe down to bar metal again. Anyone know the cause? I've ran into this before when painting electrical boxes at work with multiple layers of paint, always thought it was because the first layer wasn't dry or the metal wasn't roughed enough.
Also I cut this by making a stencil from cardboard tracing of opening in SFB, then cutting with jigsaw. First cut I tried with tin snips, workes but jagged crappy opening. Looks much better with jigsaw cut.