I recently purchased a total of 6 yards of the neon blue pvc heat transfer material. I have used the orange, black, and white before and they turned out wonderfully with no issues however the n. Blue didn't work well at all. It seems like the material once heated melted to the transfer paper causing it to severely discolor. I tried several different tempatures and pressure setting but they all turned out the same. This material was used to fill an order for a customer of mine and now I can't even sell them the finished product because the material is defective. Not sure if you have any advice or any help you could give but all would be appreciated.
Maybe the vinyl is wet, you need set low tempatures, about 130 C ,8 SECONDS.
If it still does not work, please put the vinyl into air condition home, and try it again, if you have any problem, please let me know.