Well, we must be talking about something slightly different then because I have been spray painting the pink stuff for the last 2 or so days with white spray paint to make the grill blocks for my bumper (works rather well actually, fits like a glove when molded properly) and if I spray on a REALLY heavey coat, it doesn't melt, but the air in the foam comes through and causes some bubbling, so you just have to make sure you put really thin coats on, lots of times. I ended up doing about 10 really thin coats per piece I think and it came out really great (just wish I had a camera to take pictures with).
__________________
|