This is an Aluminum wheel shell from a 3 piece wheel. Wheel was media blasted and then cleaned with PRE. Shot with EW Single Stage and put in an oven at 400. See all the pimples, I’m assuming an outgassing issue, I did not preheat the part at all. Trying another shell, outgassing at 450 for 20 min now
Here is a different pic, lower left right by the line created by the shadow you can see a smooth section which is what I expected it to come out like.