Well, I've been working on a basement with about 30 corner beads and I used all metal as I always do. The bead was bought at Slows (can't remember the mfg) and was bright & shiny with no evidence of any oil residue until the primer hit it. Now after the primer went on (sprayed & back rolled) the mud is rolling up on almost all the edges everywhere. My question is this, what's the best way to remove the oil so the mud will stick? You can run your finger over the edge of it & a black film comes off and it's a LOT of it. But just looking at the bead it looks clean & shiny. Should I use a de-greaser and prime with oil kilts before re applying the mud? (green lid USG was used on all coats) Any & all help is greatly appreciated. I think I'm going to go take a nerve pill now.