Originally Posted by dmotoguy
its similar to "goo" but suited for road tubular tires..
sort of. "Goo" or "slime" brand sealants are fibers suspended in a glycerine/glycol mix. When you puncture the goo seeps out of the tube and the fibers, in theory, are supposed to get clogged in the hole and plug it up. It works ok, but sometimes the goo will keep seeping out. Plus, it's heavy and has a noticeable effect on ride quality.
Latex bases sealants literally "glue" small punctures from the inside out. You don't use very much, so you don't really notice it's there. It doesn't clump on the inside of tires too, which can lead to a noticeable out of balance. The tufo stuff works well, either for racing or street use with tubulars.
I use a totally different sealant/system in my mountainbike tires, and did the following test with the same results:
http://www.notubes.com/moviedemo.php