I'm planning on replacing the deck in my fishing boat and spraying it with a gel coat. The boat's 20' long and 8' wide, so I'm going to have a fair amount of spraying to do. I've been doing some research, and a fair amount of the gelcoat/resin spray guns are the disposable canister type. The "external mix" gun would be the most convenient, and I don't have to worry about the mix kickin' inside the gun. I'm concerned that the resin and the catalyst may not mix right. Does anyone have any experience with these external mixing guns?
"mix before you spray"
http://stores.infinityfrp.com/-strse-117/Gel-Coat-Spray-gun/Detail.bok
"external mix"
http://stores.infinityfrp.com/-strse-119/Gelcoat-spray-cup-gun/Detail.bok
"mix before you spray"
http://stores.infinityfrp.com/-strse-117/Gel-Coat-Spray-gun/Detail.bok
"external mix"
http://stores.infinityfrp.com/-strse-119/Gelcoat-spray-cup-gun/Detail.bok