Silicone is more durable than latex，The tear strength of silicone is better than latex’s.
Advantages of RTV Silicone compared with latex:
RTV silicone is as useful as latex, but sets a lot more quickly. Latex can take days to build enough layers of latex to create a mold, but RTV silicone can be mixed, poured and set within a matter of hours. RTV Silicone is generally a lot stronger than latex and will produce more castings on average.