MMS writes:

Thanks for any/all help!

Here is the help you need: you are doing this all wrong. Strip the adhesive
residue off altogether with methylene chloride paint stripper.

You must remove odorous contaminants. Leaving them in place with a
covering of "sealant" is futile. Getting them wet and waiting to dry is
also futile, as you have seen. The foul smell comes from gaseous products
of biological decomposition, and that gas will work its way out of
*anything* you put on top of it, short of a hermetic seal.

I know you just wanna believe it can be done some easier way, because you
were foolish enough to be suckered by the carpet-cleaning crooks, but it
ain't so.