I install Corian for a living, 3 1/2 years. We used to use 100% silicone, which I prefer, with hot melt to hold the walls in place until the silicone sets up. We stop using it because it is more expensive then using the neoprene glue. We are now using the Neoprene glue bought from a builing supplier which is also used on subfloors and stairs. You still have to use hot melt or some sort of bracing material till it sets up. If you have any ?'s email me.