I am looking for a way to do the following. 1. Arrange a pattern of semi-precious stones. 2. Embed it in a transparent medium so that it can be hung up, say in front of a window.
Someone suggested I use ClearCast epoxy in a silicone mold. I sort of like this idea, but the problem is that if I just pour epoxy over the stones, the whole thing will have exposed stones on one side. I'd like to have it smooth on both sides. Another thing that occurred to me is to lay the stones on a sheet of glass, and then pour the epoxy over that, but I don't know how well that would work. How well would the epoxy bond to the glass? Also, what would be a good way of keeping a rectangular shape on the sides?
Another option would be to do two pours. After pouring onto the stones and letting it harden, I could turn it over and then pour a second layer. Any ideas on how well the second pour would bond to the first, and also would I expect a visible fault plane in the middle?
Any thoughts are greatly appreciated. Feel free to alter the tags.