So I went to go apply silicone sealant to some joints today. The tube we have has a large UPC sticker across the front. As I finish applying it to the second joint, I realize that it's not sealant, its a lubricant. - Doe!
Still don't know what kind of product it was exactly, the sticker completely covered the front, and the back referred to the contents only as "silicone compound". It was fairly easy to wipe off, so no harm done.