There is no such thing as "high performance calendered" thats a marketing scheme to fool people, and the fact you are getting 3-5 years proves this is an intermediate film. Use 3m IJ180c and 8519 and don't look back. Also is this solvent ink or eco solvent ink? Eco will no last as long as Solvent.
Good luck
I believe high performance. Calandered is polymeric. It's not a gimmick to fool people, but it's still not a great material. Alot of the cheap crap is monomeric ... Then polymeric came out. It doesn't shrink as much, and lasts a few years longer than monomeric. It's good for hobby and temp stuff... I use it on occasion, once bought a cheap roll of monomeric off eBay just for some testing purposes.. Never again. It was shrunk by close to a quarter inch before I even opened the box.
We use some 3m calandered for cheap stuff... Like ij35. Real estate signs don't last more than a few years, so they're the perfect candidate.
Anything that's not temporary , or anything we know will get beat up and need replacing before 5 years we use calandered. For everything else we use cast... We go through 20 rolls of cast to 1 roll of calandered.
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