It cost a bit more, but I asked Ray for a favor and he made all of my gear IP70.
(The ratings don't mean much to me)
Personally, I submerged a stand of rectangles in a bucket of water for 2 days and no issues. Also, last year my flex strips held up fine all season and they are not further encased or anything. There's definitely a leap of faith using new technology. I am actually nervous since this will be the first time I've used pixels... Honestly, I think SS gear is light years ahead of incans and well built.
To answer your question directly, the modules are encapsulated with epoxy resin. I ran 200 modules last year and adding another 400 or so (if my order gets here
) I prefer the look of the 5050 leds but I am being forced to nodes for live trees.