Two-part curable liquid silicone rubber composition

The present invention provides a two part curable liquid silicone rubber composition wherein a first liquid composition and a second liquid composition when mixed results in a curable liquid silicone rubber composition that when cured results in a silicone elastomer having an elongation at break value of at least 800% as measured according to ASTM D-412. The silicone elastomer according to the invention comprises at least one alkenyl-containing organopolysiloxane having two silicon-bonded alkenyl groups per molecule, at least one diorganohydrosiloxy-terminated polydiorganosiloxane, at least one organosilicon-containing cross-linking agent comprising at least 3 silicon-bonded hydrogen atoms per molecule, and at least one silicone-containing crosslinking agent comprising at least 3 silicon-bonded hydrogen atoms per molecule, at least one addition reaction catalyst; and at least one filler. A silicone elastomer having an elongation at break value of at least 800% and resistant to elongation without breaking is a