I don't think so. Unless he uses exactly the correct amount and the top
is exactly level it will overflow.
As it does not stick to plastic, if I were to try it again, I would rim
the top with a heavy plastic coated tape.
I had a big problem with improper mixing. So now I pour part A and B
together and mix. Pour this into another container ( scraping the sides)
and mix again. Then pour it back into the first container and mix again.
You have to move quickly. And then pour on to the substrate. I then use a
propane torch to break the bubbles. Good luck, JG

woodworker88 wrote:

Are you sure you need it? Have you tried? I think that most of the
products such as Mirrorcoat sold by woodcraft are designed to use the
surface tension of the piece to prevent the epoxy from running over the
edge. This assumes that the epoxy is mixed to the correct viscosity,
but I don't think it is terribly difficult. I would try it on a mock
up made of scrap.