Reinforcing Material

An important function of the solids in paint is to protect the dried binder from destructive influences. Some substances, by virtue of their stable nature, possess this, property in a high degree. They do not act chemically upon the oil, and are not easily changed. They are classed as inert pigments, and should be used simply as a means of improving and increasing the durability of the paint.

Pigments Alloys

"How many metals make the bronze of Corinth?"

Regardless of color, there is no one pigment that will "answer all the requirements, fill all the offices," of  a  perfect  pigment to mix with   linseed   oil   for  paint-making  not