What material consists of pigment mixed with a non-drying oil and wax binder?

An oil pastel is a painting and drawing medium formed into a stick which consists of pigment mixed with a binder mixture of non-drying oil and wax, in contrast to other pastel sticks which are made with a gum or methyl cellulose binder, and in contrast to wax crayons which are made without oil.

Explanation:

using scientific color theory, seurat developed a systematic method of painting called pointillism.