Storage in Z-COrr bags.

We are about to move house and rebuild the new place, and I will probably have to put my entire stash of rifles into storage for the period of 6 months to a year or so in a storage unit. Has anyone used Z-CORR storage bags for milsurp weapons for any length of time? they are supposed, if unopened, to protect a fireamr for up to 20 years so I'm not worried about that side of things. what I am worried about is whether there would be an effect on the woodwork by the chemicals used. Anyone have any experience with this stuff?