3M products are great because they always do what they say they're going to do. They usually even overperform by a large margin. They're one of my suppliers of choice for industrial applications or anything R&D where we don't quite know how good it has to be yet.

3M toxic chemical waste is also a core 3M product, and overperforms too. Some of their Superfund sites, particularly the C8/PFOA/fluorinated crud ones, are among the worst around. (I grew up on the other side of the city from their worst one! Yay!)

And, like any company in the fluorinated chemicals business, 3M has overperformed at ozone depletion and greenhouse forcing. I can give them a pass on that particular one, since society as a whole didn't care much about that stuff until recently. I can't, however, give them a pass for how nasty Scotchgard was/is and how much of it was sprayed on/near me as a child. If you remember Scotchgard, don't look up what it really was or you might regret your parents' life choices.