I have situation with a tiled kitchen counter top. We had an accident where something really heavy came down on a corner of our kitchen counter and broke a few tiles and a bit of the under layment and the particle board were broken out. The area where the under layment/particle board is approx 3"x1". It's right at the corner on the front edge.
Is it possible to repair something like this using a wood epoxy? Generally the area is still stable. If it would be possible to build the area back up to support fresh tiles I believe it would look ok again.