What is PET?
Cool.
I always wondered what happened to Mario’s igloos from the 70s-80s. I love those things. I’ve seen Oppenheim photo works from the 70s totally deteriorated. Kind of makes it tricky for collectors :-) . I have spend a lot of my time over the years “restoring” color data from my drum scans of deteriorated color negatives so they can be printed to replace color shifted c prints . What a mess and a total pain. People wonder why we seem obsessed about using inks and papers that have a potential to last. That’s because we have seen these things happen for decades.
PolyEthyleneTerephtalate or usually called Polyester, the stuff your Coke bottle is made of and the substrate of some color films, several varieties exist though.
https://en.wikipedia.org/wiki/Polyethylene_terephthalate#Physical_properties Mylar, Melinex, Hostaphan, are trade names.
Here in The Netherlands there are some really good restoration studios, often linked to museums and universities. What wonders me is that most of the research done is related to media/methods that have proven to be non-stable and little is done on new artist' s media/methods that are used now or in the last two decades. I can understand that to keep these studios running for the next decades and centuries their interest is not in research related to today' s artist' s practices and by that improve their longivity. Maybe a bit harsh on them but it surprises me that nobody from these institutes ever contacted me on the subject of SpectrumViz. Sure what I have done is hardly on a scientific level but did Aardenburg Imaging get some attention for its work from EU institutes like mentioned?
Met vriendelijke groet, Ernst
www.pigment-print.com/spectralplots/spectrumviz_1.htmMarch 2017 update, 750+ inkjet media white spectral plots