Underdrawing for acrylic

August 24, 2020

Pen and ink Underdrawing for A Piece of Me #59

Pen and ink Underdrawing for A Piece of Me #59

I am currently involved in a project which calls for thirteen panels to be executed in acrylic according to a pre conceived design. Thus for starters I wanted to transfer the basic elements of the design to each panel. Since I haven’t used the medium for about forty years I had to search around a bit to see how best to do that.

To my surprise I did not find a lot of information online about creating an underdrawing for painting in acrylic. Most information I found concerned transfer of the design and then getting rid of the drawing as soon as possible. That’s not what I wanted. I want the underdrawing itself to play a role in the final painting – and not just in a paint-by-number, outline kind of way. What I sense (but don’t know) is that painting indirectly, which makes use of underdrawings in a foundational and yet implicit way, has gone somewhat out of vogue. Thus the information I found only partially addressed my interest.

Anyway, the first important thing I did find was to avoid traditional shellac based india ink. This is because the subsequent acrylic paint would act as a solvent to the shellac and (at least partially) dissolve any careful design. Solving that problem was relatively easy as there were acrylic based black inks readily available at my local art supply store. I dipped a pen nib into the ink and proceeded to lay in basic elements of the designs. The pen and ink approach proved to be especially useful for the abstract composition parts of the series. There is an illustration of one of these above, left.

Underdrawing for A Piece of Me #14 in pencil.

Underdrawing for A Piece of Me #14 in pencil. (before the smear campaign)

However I also had some more complex designs that required more detail and subtle changes of gradation than the pen and ink method allows for so I switched to pencil drawings – mostly because I was most comfortable with that medium. Not a good idea. There had been information online warning about the use of a graphite pencil, but a few artists recommended spraying the completed underdrawing with an intervening level of fixative before beginning to paint. So I tried that. But it didn’t work. My softly detailed underdrawing quickly smeared into my first coat of imprimatur. Thus I definitely do not recommend using pencil for your underdrawings in acrylic (or oils).

Reclaimed underdrawing in acrylic ink wash with pen and ink touch ups for A Piece of Me #14

Reclaimed underdrawing in acrylic ink wash (with pen and ink touch ups) for A Piece of Me #14

What I do recommend is transferring your design using vine charcoal, then drawing it in either with a pen nib or painting it in with a brush, or a combination of the both. Then, after the basics of the design have been created and the acrylic ink has dried, go over the entire surface with a kneaded eraser to get rid of all traces of charcoal. At that point you will have an indelible black and white underdrawing that can be used in whatever way you choose for further levels of acrylic paint.

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