Re:Smashing idea: how East Germany invented 'unbreakable' dr...
by scott_w on Wednesday August 07, 2024 @09:59AM
(#41181553)
> I've nerve seen it on glassware though.
No but the process that strips the paint off delicate crockery is self-evidently abrasive, which stands to reason when you look at the scratch marks in glass that has been through too many cycles.
It's not on glass because an individual washing won't destroy it but repeated washing eventually scratches the glassware to hell. I've seen it with my own eyes.
Re:Smashing idea: how East Germany invented 'unbreakable' dr...
by seszett on Wednesday August 07, 2024 @05:26PM
(#41185742)
> self-evidently abrasive, which stands to reason when you look at the scratch marks in glass that has been through too many cycles.
Marks on glass are not due to abrasion, they appear because glass is slightly soluble in alkaline water, which is the case in dishwashers. Porcelain and stainless steel do not get scratched by dishwashers for example.
I've nerve seen it on glassware though. That warning is usually for plastics since they melt at hot dishwasher water, and on certain metal cook-ware where the caustic dishwasher detergent will corrode the metal anodization, but glass is usually resistant to both temperature and caustic detergents, which is why it's used in bio labs for storing and mixing harsh chemicals, granted, different composition of glass, but it's still glass not adamantium.
So this point doesn't scan for me.