Mylar is a polyester drafting film with a matte finish. It resembles a heavy tracing paper, but has no rag content and thus is archivally sound. I prefer Mylar because it is smooth and the paint slides easily across the surface with revealing brushstrokes. Mylar can be mounted on hard surfaces or presented like works on paper. For a uniform surface I varnish these works with Gamvar (a synthetic varnish from Gamblin paints that does not yellow and is easily removable.) Mylar is also wonderful as a drawing surface using a soft pencil.
The works below are done in oil or pencil.