We had a Corian type shower installed 10 years ago. The clear grout became discolored after 5 years and so we had it redone. The shower began to leak probably between the walls of the shower and the pan. We had it regrouted I with white flexible grout and the problem continues. The only suggestion given by shower repair people was to have the whole shower taken out and redone. I used gorilla glue around the edge between the walls and pan. This worked for about 6 months. Now I have water appearing at the edge of the shower and the wall near the join again. Its not as bad as it originally was. Any ideas. Mine was to use more gorilla glue. And then cover it up with a row or two of mosaic tiles.

Just a quick answer. Sounds like you had 6 months OK so you had indeed found the source of the leak but it has just decayed again. I'd strip all sealant, triple clean the areas you want to reseal with powerful chemicals to ensure your next layer of sealant sticks well and it should last longer than 6 months? Tile idea also good but you'll need a good base to build on.