1966 Valiant Signet Convertible Resto
There might be two possible problems, one is that you used a paper towel and did not use a tack rag properly. There is no such thing as a low lint paper wipe/towel, dupont sontera seem to be the lowest, but you still have to tack properly. Open the tack rag up fully unfold it to where it is one single thin cloth, then ball it up, let it sit and warm up for 10 min, then wipe the panel down, always wipe in one direction, dont double back. Do this before you spray, no more than 10 min. (Unless you are spraying filler primer, then dont worry about it because that stuff sets up so fast, you will hardly have time to spray and clean your gun) Buy a box of tack rags, and dont be cheap with them, dont use one more than once (unless you are doing bodywork, then it dont matter)
Also, plastic sheeting lover to pick up dust because of a static charge, the air from your gun will blow it loose. I ended up having to wet down the plastic on the walls, and wet the floor. It just worked better that way. The humidity helps to slow down the drying of the clear, which helps it flow out better.