Which Glue to Use Where chart
You know it's funny that most people often think super glue is a type of permanent adhesive, I believe part of the fault is how super glue manufacturer advertise their products. In fact, super glue can only be used for small (I meant VERY small) surfaces, such as cracks or small parts. Therefore it's often favor by hobbyist (Gundam models building :P), it cannot be used in industrial practices or metal works, although carpenters use it a lot. It could work wonder as temporal holding or dressing for fixed parts like bolts. Here's to answer your question: Super glue made mostly of Cyanoacrylate ( [en.wikipedia.org] ), a quick bonding acrylic resin (read: brittle) chemical that start to form when come in contact with water or just moisture. There are many brands of super glue, each with different compound to make the glue stay liquid and gel-like or to strengthen it, but they doesn't last well in the long run.
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