Originally Posted by HillRider

Despite not being a true vulcanizing fluid and not actually reacting with the patches and tubes, I've had excellent luck using plain old "Elmer's Rubber Cement" from any office supply or X-mart. I scuff the area around the puncture with sand paper, wipe it clean and apply a thin layer of the rubber cement extending over a bit larger area than the patch will cover. Let the cement dry completely then apply the patch and iron it down with firm thumb pressure. Patched this way I've had excellent results and almost no failures. Perhaps it's not the right cement but it really does work.