Hi! Today I want to talk about glues and adhesives. You probably know what glues are. Adhesion is the attraction between molecules of a different substance. There is also cohesion, which is the attraction between molecules of the same substance. One type of adhesion is called chemical adhesion. This happens all the time in nature, but its hard to engineer at one’s leisure. This is because only certain chemicals can bond with each other.

The most common type of glue is white craft glue, which is basically the glue kids use in school. This type of glue is most useful on things such as paper or cardboard. Then there is yellow wood glue. This is mainly used on wood. Next, there is superglue. This is basically a glue that bonds very quickly, and solidifies fast. Finally, there is hot glue. Hot glue is great at filling gaps, and can be used on both porous and non-porous types of objects.

Well, that’s it! Glues and adhesives really are pretty interesting. Thanks for looking! Have a good day everyone!