I still had a small amount of West systems 105 leftover from my very first purchase in 2005 ... I did a test with new hardener, and it worked perfectly after more than 7 years!!

My conclusion is, that the Resin will last for years, if kept cool, dry and dark.  The hardeners however will not last much more than a couple of years, even when ideally stored.

"Sapere Aude"... Dare to KNOW!

The written word is the only truly efficient vehicle for transmitting a complex concept from mind to mind...

103% of all people do not understand statistics...

Do not adjust our mind, theres a fault in reality :-)