RE: pre-seaming solartex
If you are using Klass Kote, I believe you can get flat as well as gloss hardner if you do not like a glossy finish. I my book, Klass Kote is the ultimate finish as it is very durable and flexible so that you do not get any problems with unsupported fabric areas. Plus it brushes on well without leaving brush marks if you do not want to spray paint.