Table 1.

Silicon Rubber properties.

Silicon Rubber RA-320 Properties	Value
Catalyst ratio	1%
Shore A	20
Viscosity	20,000 cps
Working time	30 min
Curing time	4 hr.
Tear Strength	28 N/mm
Tensile Strength	≥ 0.460 MPa
Shrinkage	≤ 0.28%