Ornerynorsk: Correct, this is an extrusion. I do not believe that this is the beginning of a run. We had sent several 20' sections to our vendor to be painted and the majority of the pieces peeled, except 5-6 pcs.
SMF1964: The paint is a liquid and then baked at 450 degrees. Unfortunately...
We sent out some 6063-T5 aluminum parts to be painted; the vendor called stating that aluminum (not paint) was separating and peeling back after 12 minutes @ 450 degrees. Does anyone know what would cause this?