Why doesn't glue stick to the inside of the bottle?
Question:
Answers:
Yep, it's because it's confined from air - same reason ink doesn't dry inside a pen. Eventually it will still dry very slowly because some air will leak in, which is why sometimes the screw cap can get stuck when the glue isn't used for a while.
It sure would if air got to it,, keeping the cap on is what prevents the glue from hardening!
It has to exposed to air for it to dry.
Because no air has gotten inside yet.
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