Where can I get a replacement face shield for Bell's Zephyr Helmet?
Don't know what would make it stay tacky save conditions that are outside the norm (you'd have to determine that,) but you can but hardeners. I use an aerosol spray that cooks glues to instantly harden and bond. Might just work with your epoxy.
we used to back in the day when it was hot and we turned it on in the street from the hood baby to run thru it and get wet boy we had fun