Why is it good to “rough up” a surface to be glued? Wouldn’t a smooth surface give the best adhesion?

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Why is it good to “rough up” a surface to be glued? Wouldn’t a smooth surface give the best adhesion?

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Anonymous 0 Comments

On a microscopic level, the glue seeps into the abrasions of the rough surface and grips them better.

Like how your fingerprints help you to grip things.

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