Why glue doesn’t stick to its bottle???

Ever wondered why glue doesn’t stick to its bottle?

Here’s why - Glue is essentially made from polyvinyl acetate. Glue is designed to work when they are exposed to air. Glue containers have an adhesive mixed in a solvent. When exposed to air, these solvents evaporate in the air or get absorbed by the surface in contact and the glue dries. When the glue is still in the container, there is no exposure to air, thus remains as glue.

Author : Shrividhya Gopalan

Sources: Why super glue does not stick inside their own bottle?

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