Originally Posted by Dave719
I have the Park glueless patches and it did come w/some sandpaper to prep the tube. The tube MUST be clean. Dust, dirt, baby powder, etc. must be removed otherwise it won't adhere.
Dave
Yup, Dave is absolutely correct. Good point. I carry a couple of those pre-packaged alcohol wipes in the bike bag. You can get them in any drug store for ~$2.00/100, so that will last you a long time. Plus, they are nice to have if you get dinged up or get a cut. If you wipe the repair area of the tube with alcohol and give it a few seconds to dry, your repair has a much better chance of becoming permenant.
I see now that a2psyklnut says pretty much the same thing. Sorry to be repetitive, but there seems to be a common thread here.