It appears that the current batch of MK is back to "normal". (Just covered a couple of pattern planes.) That being said - take a good look at the stuff before trying to use it, if there are little "fish-eyes" visible or if the backing film falls off return for a different roll. I tried to use some old stock (mine) on the bottom of surfaces and was quickly frustrated even though the material "looked" OK before application - just impossible to work with. Ripped the stuff off and covered the parts without any problems using a new roll.