On 04/07/2016 10:06 PM, Tom Gardner wrote: > And it's not likely the binder, fully cured epoxies are also very > stable. Note disks do not have the tension problem that tape has.
There, I have to respectfully disagree. Floppy disks do not use an epoxy binder, but usually a polyurethane-based one. (Most are proprietary formulations). Hard disk coatings usually use an epoxy-phenolic binder, but they're not on a flexible substrate. Polyurethane isn't forever and tends to be somewhat hygroscopic. --Chuck
