Using a Delfleet Essential paint on my 46 Ford pickup. Paint supplier says I cannot thin this paint. I have tried differing pressures an volume but cannot seem to get a job done without orang peel look. Has anyone used this paint ? It is a paint with all in one ( clear as part of color ). It is a three part paint. Help

I have not used this particular paint but single stage needs to be sprayed wetter than base coat does. Possible move closer to the surface and slow your spraying speed down a bit.
You want it to flow and lay down. Using a slower (higher temp) catalyst will help