I love doing pens out of Corian!!!!!! I agree with everyone use medium CA, i apply it to one blank sparingly, then rub the 2 halves together, to get good transfer and spread then hold together. I have done quite a few and no seam lines yet, Just dont use 5 min epoxy, it is not recommended. Did it once and the blank blew apart during drilling, then other half blew up during turning!!!!