Method 1: If the adherend is hard, such as glass, wooden board, etc. You can consider wetting the glue surface with water and wiping it with a cloth after softening.

Method 2: Wipe it off with an eraser.

Method 3: Soak in water for about half an hour, then add detergent, which is easy to wash off.

Method 4: Soak in white vinegar and wipe with paper towel.

Method 5: Wipe it off after soaking in tea.

Method 6: If it is a smooth object, you can wipe off the surface with a dry cloth.

Colloid classification:

Aerosol-a dispersion system with gas as dispersant. Its dispersion can be liquid or solid.

Sol-a dispersion system with liquid as dispersant. Its dispersoid can be gaseous, liquid or solid.

Solid sol-dispersion system with solid as dispersant. Its dispersoid can be gaseous, liquid or solid.