A pre-thickened addition cure (platinum cure) silicone, it is a 2 part system that works as a 1-1 by weight ration and shore hardness of 22.

Thixotropic RTV-2 silicone rubber, platinum cure, skin safe, fast setting and high mechanical properties.
RTV-2 silicone is used for many duplications and can be stored for a long time. 

The perfect consistency for lifecasting as an alternative to alginate, lifeform or go cast. Also for various other brush/vertical applications.