mndless
Don't know a thing..
I had some 20 year old rolls of white, but didn't have enough for the plane I was working on at the time. Got some new rolls to finish the plane, the color still matched and I found it still worked the same but it doesn't stick as well. The plane I'm working on now just sitting on the bench I notice new spots coming lose all the time.
Not good... just recovered an entire airplane in the stuff.... ack...