Smooth-on

[mzombek]

I purchaced smooth-on during 2014 ETAR. They have not been opened yet. Any idea what the shelf life is?

[Buemaker]

I used SO this autumn  that had been in unopened cans from 2011. Was perhaps a little thicker, but otherwise no problem. Bue--.

[JamesV]

I found a unit of E-40 on a back shelf that had been there almost 4 yrs and it smelled very strong and was a little darker but otherwise did a good job.

James

[Krasus]

It has a 1 year shelf life from once you crack the lid open.