There's as many clearcoats out there as hairs on your body.
Devcon 2 ton, flexcoat, etex, rod epoxies, bar top finishes, kbs diamond coat, aliphatic urethanes, uv, egads.
flex coat will work well and gives you a nice finish. Wear gloves and keep your finger oils off the paint/finish. Some use rod turners or barbecue rotisserie motors. You should turn them 1-2 rpm.