Stans tape sucks!!!

Just bought a roll of Stan's tape and applied to my newly laced Stan's rim. Cleaned with Simple Green degreaser. Well, as soon as I put the tire on, the tape popped off. Tried round 2, but cleaned with gum cutter, same thing. Any one have any suggestions? I cut a 4" piece and put it on the rim, came back 10 minutes later, and it peeled as well. What gives? I am told this stuff is the bomb! Thanks for any help. Shawn