Hi,
I have got a Gelcoat Gun and find it a bit like using a fire hose.
I am sure it is great for covering a large area but most of my moulds are only about 50mm wide but long.
I only use GC50 at the moment.
Has anyone tried smaller nozzles? If so what size?

Brian.

Yeh that's what they are designed to do. I find them way too much if you are doing anything smaller than a bonnet. Problem is, it isn't totally the nozzle size that is the issue, it's the combination of the nozzle size AND the air pressure required. 80psi is always going to cause a lot of overspray, and while a smaller nozzle might help a bit it won't make it any cleaner.