I bought some caulk at Home Depot. I had it in the trunk of the car. It is a car I hardly drive. Anyway....the caulk has been there for several years.
I put it in a calk gun and it won't pump anything. I even took a coat hanger to try to open the spout. I gouged it pretty good.
I carried it to Home Depot today to see if I could trade it for another tube. The girl said that it has a use by date on the tube had passed. That kind of voids the lifetime warranty. She said the lifetime warranty was for the applied caulk. I wonder how you could get another tube for some that has already been applied? :)