I had a lot of issues trying to attach a PVC right angle elbow to a Corian Sink overflow hole which is located on the upper part of the sink. This sink has a separate tube that connects from the elbow to the drain at the bottom of the sink. Every time I applied the 2-part resin glue to the elbow and the hole in the sink, the elbow would slide and eventually pull apart and fall off. After several attempts, I realized the surfaces may be too smooth - so I sanded the PVC elbow and the hole in the sink to make the surfaces a bit rough and then glued the two together. This time it worked!!!
Rating: [4 of 5 Stars!]