Materials and examples of marks
21
A SELECTION OF ERASERS
Pumice stone is useful for removing
very stubborn marks, but it can
damage the surface of the paper and so
must be used with care.
A razor (or scalpel) blade can scratch away
difficult-to-remove marks. It is an instrument
of last resort because while removing the
marks you don’t want you may inadvertently
damage other parts of your drawing.