Well, I know the duct seal compound and anti-ox I use are, but not seeing it on much of anything else. I even have a few different types of food grade greases, oils and spray lubes that do say "NSF H1" on them, but no UL listing.
One thing I find odd is that I have a can of that 3M Scotch Coat on the shelf and I don’t see any UL listing on the can. You would think that since it is used for insulating purposes it would be listed. The can is unopened, but is still probably 5-years old, so maybe they have updated their product since then.