Thanks guys, and Pete. I wouldn't be surprised if the stuff was old. Boating in Minnesota is extremely popular, virtually everyone has a boat of some variation, but most are aluminum fishing boats, and I don't know anyone up here who does their own repairs on glass. There just is many places to source supplies, being new to this a bit unnerving as well. Wood is so simple in comparison.

I thought I was mixing well enough, both when it was in the can prior to adding the catalyst, and after it was added. I'll try pouring it off in a seperate container once mixed, and then covering it with some plastic after its applied.