5 ms·
What's the inside coating made of that doesn't get dissolved away by 40% ethanol solution?
by jey 6y ago
What's the inside coating made of that doesn't get dissolved away by 40% ethanol solution?
- knodi123 6y agoyeah, my understanding was that most paper packaging these days was lined with a very thin layer of plastic or foil. but "pure paper" is what they're claiming... maybe there's a new tech? or maybe they're doing that cheap marketing trick where you say "20% of the package is made entirely out of nothing but 100% pure paper!"
- beenBoutIT 6y agoIt could be something like a food-safe linoleum coating on the inside surface of the cardboard bottle.
- mattmaroon 6y agoProbably an epoxy that’s sprayed on. That’s what lines aluminum cans.
- ficklepickle 6y agoI just found out about zein[0] the other day. It's made from corn. Not sure about ethanol resistance, though. Wikipedia says it is used to line coffee cups, for example. How often it is used, compared to plastics, I do not know. [0] https://en.wikipedia.org/wiki/Zein https://en.wikipedia.org/wiki/Zein