How long is silicone putty accurate?

JMN

JMN

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Specifically the Condensation types. The playdoh and a tooth paste tube kind.

I was curious if anyone had any data on this, even anecdotal, when I came across a set of unknown age in my duplication flask.
 
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FASTFNGR

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JMN said:
Specifically the Condensation types. The playdoh and a tooth paste tube kind.

I was curious if anyone had any data on this, even anecdotal, when I came across a set of unknown age in my duplication flask.
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I had some for more than 3 years and it was as hard as the first day. Shore 95.
 
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