Originally Posted by
kidolph
Richard,
When "caulking" Corian it is best to use a 100% silicone product and make sure that you prepare the area with alcohol first. Push the silicone into the crack as far as you can and leave an ugly bead there for 48 hours. Then slice off the bead with a razor blade for a clean finish.
If the crack is very fine you probably will not be able to get any type of "caulk" into it. In that case, you can cool the area with a bag of ice. This will open the crack some. Then, clean it well with bleach and a toothbrush. Warm the area with a hair dryer until the crack closes and apply a "wicking " cyanoacrylate. Do not use for 24 hours. If this is a seam area you are unfortunately gluing Corian to the adhesive and the same thing may happen again on the other side of the layer of epoxy. But after a second repair you should have no further trouble because the epoxy has better cohesion than adhesion.
You can contact me if you have further questions.