: finally got to glassing my decck last nite. used squeege for the first time
: can't belive what a diffrence it made.? is can i use it on the seconed
: fill coat or should i go back to the roller?

The best thing to do is to give it a try. I've used a squeegee and rollers for doing the second coat. Now, I've settled on using a brush. For me this works best. But it depends on your technique and what you are comfortable with. You will lose nothing trying a squeegee, also have a roller ready along with a brush. Try each and see what suits you.