Epoxy resin is a versatile synthetic material ... The width and depth of the “river” will depend on the size of your table.

4 foot folding table features a heavy-duty blow-mold light grey resin top for durability and easy cleanup Resin surface is waterproof, scratch, and impact resistant, making this multi-purpose ...

good enough to try a few casting shots with epoxy resin. [Zach] ran into a few problems along the way, like proper resin selection, temperature control, mold release agent compatibility ...