I've searched this forum and Sheldon Brown's site and I'm probably not searching using the right terms but I can't seem to locate any information on repairing small cuts and divots in relatively new tires. Long ago I used something called "plastic rubber" that I can't find any more. I was wondering what types of glues and sealers have been found to work. For example, I have a tube of black RTV that looks like it would do the job. I'd appreciate any tips or links you might care to post. Thanks.