How do I eliminate orange peel when spraying urethane clear coat .

Papa, Most important to follow the instructions on the product/paint you are using and using all the same product brand are important. Temperature, mixing/thinning, PSI your spraying at, spray tip size, technique how close/far you are to work when applying paint and and try to hold spray gun straight/perpendicular to surface being sprayed, all can effect the way clear coat is going to lay.

I would always spray a test sample before spraying the hood to see what adjustments have to be made to avoid faults in the top coat.

I will post a couple links that can give more info. and how to take care of orange peel in top coat after the fact. Good luck.

I hope this helped you out, if so let me know by pressing the helpful button.

http://www.drbeasleys.com/blog/2012/09/0...

http://www.howtopaintcars.com/208/how-to...

https://www.youtube.com/watch?v=ebFTvqIq...