[delorean]

Hey guys i powdercoated a micstand in gloss black the other day and it flowed out and looked good but when i checked it about fifteen minutes later it had become dulled out in a large area near the back of the piece is it possible that the powder burnt?? It was done in a toaster oven and the piece got to about 500 degrees.. even when i turned the oven down.. Or is it possible that the powder is too old?? I didnt have this problem when i first got the powder but it is at least a year old.. Thanks Dave.