Painting my gf's bike a dark purple color. The fork turned out flawless but the frame is giving me a rough time. I just now tried again for the third time to sand the final coat and get ready for one final coat of color before clear and it started to orange peel again in a few different spots.

I wet sand the orange peel spots along with the entire frame with 600 grit usually, spray down with Windex, wipe don with rag, let sit for about 30 minutes in the direct sun in about 80 degree weather. I hold the spray can about 7 8 inched away from the frame and make sure I continually move in a sweeping motion. WTF am I doing wrong? I am getting very upset because her bike has been apart over a month and I wan to get it back on the road. It's killing me. Please help.

After the first time the frame orange peeled last night, I put it inside my car and let it bake for an entire day to assure a hard finish before I wet sanded again. The first couple coats w/wet sanding were just fine. It would say the third coat of paint started to give me troubles.