[sysguest]

idk you can just use simple liquid-container or sticker?

maybe apple was preparing for "carrying-around laptop experience"?

[XorNot]

That's an entirely different product build path compared to the electronics production line though.

If a pick and place machine can drop it on and reflow it, that's what you want.

[sysguest]

well it would be hardened when contact with air or something

see "Shipping Damage Indicators"