When using oil-based colored pencils with the Icarus Drawing Board, make sure to combine them with a wax-based medium. As you can see below, a thick layer of wax-based colored pencil is necessary to make the oil-based one as blendable as its wax counterpart.
Trackback

Ester, what brands are oil based colored pencils? I use Prismacolor that are wax based. Caran d'ache is the wax based "pastel" or crayon....but oil based cp is new to me. Thanks for the updates by email.
Deb: the oil-based colored pencils I’m familiar with are Caran d”Ache Pablo, Faber-Castell Polychromos, and Lyra Rembrandt Polycolor, all excellent brands. Keep in mind that oil-based colored pencils are usually harder than their wax counterparts like Sanford Prismacolor, Caran d’Ache Luminance etc. Since they don’t soften as much with heat, I use them in conjunction with a wax-based medium.