Silicone rubber specially formulated to be thickened with Cab-O-Sil or other thixotropic agents.

Not all of the silicones on the market can be used with this technique because the Cab-O-Sil may delay or even inhibit the cure of silicone, so only use this technique with rubbers that have been tested for that.

Bottles w / 5,25 kg or 11.57 lbs (Silicone and catalyst included)
==================================================================
Fast catalyst = 5 minutes of working time and cures in 3 hours.
Slow catalyst = 15 minutes of working time and cures in 6 hours (if you choose the slow catalyst does not mix with silicone Cab-O-Sil).
==================================================================

See also the Cab-O-Sil and the fabric reinforcement..
(Choose the fast catalyst if you are gonna use it with Cab-O-Sil.)