why doesnt the plastic top of superglue stick to the tube?
Mine always does!!! What superglue do you use lol ?
Poly-vinyl-chloride(PVC)..you can't even get melted plastic or rubber to stick to that stuff.. That's the material they use to make your computer cables..its the molded structure below the actual color coating.
The glue does not stick because the plastic on the inside is to smooth for it to stick. Also it does not dry on the inside because they need air to dry in
Because it's superglued on, the super glue probably got out and glued the cap on, happend with me to.... I had to buy new superglu.
It does eventually. Superglue has acetone in it, which is a solvent that's extremely volatile (evaporates very quickly). And, as long as the cap is properly sealed, the acetone won't evaporate for a while. So, the glue won't dry and glue the cap on. But, if the cap is open in the slightest - or simply over time - the acetone will start to dry up and the glue cures inside the cap. Then the only way to get it off is to use pliers to crush the hardened glue in the cap and then to twist the cap off. But, this usually ruins the cap and it will never seal properly again. At this point, it's better to just throw it away and get some more.
