why erasing colored pencil is harder than erasing normal pencil?

Question

I think this depends on what they put inside the pencil lead but I wanna know more

In: Chemistry

Answer 1

Normal pencils, such as the standard #2 or HD varieties, use a “lead” that is composed of clay and graphite. (Contrary to urban legend, real lead was never used in pencils). The graphite creates the blackish color, while the clay makes the graphite softer and stickier, so it sticks to the paper.

Colored pencils use a lead made of wax with pigment embedded. The wax sticks to paper differently than the graphite/clay mixture does, meaning that a regular eraser won’t work on it. They do sell special “erasable” colored pencils that can be erased with a special eraser.