Artistry Epoxy can be used to make tumblers, the cup should be stainless steel, prep cup by sanding and prime with spray paint. Use a cup turner to keep epoxy level on the cup as it cures. Three to five layers of epoxy are standard for tumblers.
Artistry Art Epoxy can withstand heat up to 500 Degrees F, meaning an object that is 500 degrees will not melt/damage epoxy if it was mixed and cured properly.
When mixed and cured properly, Artistry Epoxy meets FDA standards for food safety.
Artistry Epoxy has low to no smell, especially when compared to other epoxies.
Artistry Epoxy is on the thicker side, which can be tricky with bubbles, but as long as your epoxy is kept at 70 to 75 degrees or heated before mixing its easy to pop any remaining bubbles with a torch after its laid out.
Artistry Epoxy is a no VOC formula.
Artistry Epoxy is a no VOC formula, but like with any epoxy, you should use gloves, masks, safety glasses, and clothing that covers any exposed skin. Also, use in a well-ventilated area and research before using epoxy on all risks associated with epoxy use.

Once epoxy has been opened, it has a shelf life of about 6 months. Once opened, the oxygen in the container can discolor your hardener.