whisky glass issues

[pisquee]

not yet, just did couple of quick test prints, nothing worth photographing

[nixnax13]

Do you need special sublimation glasses to print on # NEWBIE here

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yes, you can only print to polyester (and similar polymer materials) so if what you want to print to isn't a suitable polymer, then it needs coating with a suitable polymer layer. And, no, before you ask, you can't coat things yourself (well, technically it is possible to buy coatings, but it isn't economically viable to get it good enough to use for a commercial product)