Q: In the October 2006 issue of American Artist, John A. Parks wrote that Ken Auster primes his canvas with acrylic gesso and then applies a coat of latex exterior house paint because it makes the surface less absorbent. Please explain the chemistry of how this combination works. Will oil adhere to this canvas preparation long-term?

A: The gesso will "size" the canvas, and this process will give the canvas its strength. The latex will also make the canvas silky smooth. Be sure to use a high-quality latex paint that offers some archival capabilities. Apply a thin coat to ensure an even application, and oil paint will adhere to the canvas. I would suggest painting a few small test pieces before you commit to a serious artwork.

--by Camille LaPointe-Lyons