not sure hoffy, its paper emulsion.
i've exposed a paper negative before and forgot
it in my film holder for a year. LOL. and developed it,
the negative came out fine. from my experience with dry tintypes
the developer is weak and has a bleach in it the emulsion is exactly
the same as paper emulsion.
i know of someone who coats plates, and shoots them for a week and then returns
to process them ... he seems to get ok results too ....
but with everying on the interweb, ymmv,
have fun ( thin coat of emulsion works best )