Painted some parts around 6 months ago with lechler epoxy and went wet on wet with some eastwoods extreme chassis black, it looked good but i noticed a few pits that i had missed, so decided yesterday to re sand and spray another coat of epoxy, but this time it reacted! when i sanded i when through to the epoxy in a few places, and it has reacted everywhere i sanded through.The only thing i did different was i added a bit of epoxy thinners to the paint, which i didnt do last time, could this be the reason its reacted?
Seems a bit strange that the correct epodur thinners would cause the old fully cured epoxy to react.