What is a good dam and release agent for pouring epoxy or poly?

Do you want to have the epoxy stop at the edge, or go over it?
(”over a wooden bar counter.”) is my reason for asking.

@rebbel,-Yep I want it to go over an edge.

Okay, I thought you were, but I didn’t (still don’t) get the dam.
Anyway, is this of help (the technique to make it flow well over and on the edge/face)?

@rebbel -Yes, thank you. :)
No dam at all. I did not know this.

Glad to be of help, for a bit!
And the release agent?

@rebel- Apparently, I won’t need one. :)

What did the fish say when he swam into the concrete wall…?

He said “DAM!!!”

I think this would work. But you can call and ask. Everyone is super knowledgeable and really helpful.