That ugh in the last post doesn't work. So get on their site and punch the Q & A bar. E. is very much a traditional varnish with all the curtaining and bubbling problems spar varnish has. Varnish is probably formulated for grizzled chain smoking professionals who've spent their life breathing solvent fumes and learning how to barely control the syrup they spread on wood. It's a conspiracy in providing employment for yard workers.

You can check on how good the guy is by running your fingers along the underside of a rail to feel for any bumps there.