Table 1: Comparison of polymers used.

Polymer	Characteristics
	Shore A Hardness	Mixed Viscosity	Pot Life at 23°C
Elastosil RT604	25	800	90
SF00 2K-Silikon	00	1.5000	6
Sylgard	43	35.000	90
ZK13 2K-Silikon	13	45.000	40