I'm having a very hard time getting a smooth finish coat of varnish. The underlying epoxy layer was sanded completely smooth. I applied Interlux Schooner varnish cut with 10% lacquer thinner and wet sanded with 400 grit between each coat until I got to 5 coats. Each coat had a rough texture when dried that sanded off easily but left a dull finish. I want a high gloss finish so I need to continue. This is on a restored canoe paddle so it would be easy to control the environment. The first 4 coats I hung the paddle in the shower and closed the curtain and turned off any air sources. The last coat I made a curtain that goes completely around the paddle and is closed at the top and bottom except for a small ventilation hole at the top. Also I shook the can but let it sit overnight before using it. I am using a new foam brush and following the technique described in Tips for Boatbuilders. Still bumpy. Any ideas or is the finish I want simply a wet sand and finish wax type of deal?
Thanks for any help.