can you reshrink monokote after 30 years

Probaly the original stuff, but good luck with the new stuff even just off the roll.[X(]

I don't know about 30 but yes on 20 years..

Try it out and tell us how it goes.

Seriously, you really have no choice, unless you want to fly it loose. Either it shriks or it doesn't. Knowing before hand won't make a difference, right?