Thanks for your comments. I think I was mixing too fast.Those bubbles
I do get I'll tip off with a foam brush. I'm also building in
a garage and can't control the temperature.

I appreciated the comments about fiberglassing the hull. I'll probably be doing that in a week or so. Am I right that a cool day (70s) would be better than high 80s? I'm using the medium speed hardner from System 3.

Thanks again,
Mari