The Tamiya stick on zimmerit looks like this: (click on the photos to make them bigger)
http://www.rc-panzerketten-forum.com...threadid=15349
It is ok however I found that it tended to start peeling off at the edges on high wear areas.
Google the word Apoxie Sculpt for info on the 2 part expoxy resin that I used for the zimmerit. It is similar to the real thing, you smooth it on, press a stamp (with Zimmerit pattern) into it and then it sets rock hard and permanent. It is the only way to go. Takes ages to do and is best done over several days so you do not muck up the bit you have just done while working on another bit.
AL