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View Full Version : More on Underpainting: A Quick Demo


ColorOfMagic
04-05-2006, 01:53 PM
Uusing my 35mm slide viewed through a rear view projector, I did an acrylic underpainting in local colors over a detailed charcoal drawing. The support was a 1/8" pressed wood (Masonite) prepared with multiple coats of acrylic gesso.
http://www.wetcanvas.com/Community/images/05-Apr-2006/79196-Pond1.jpg

After the underpainting was dry. I applied two coats of an acrylic ground for pastels -- a product made by Golden Acrylics which has silica particles suspensed in an acrylic binder.

When the ground was dry I finished the painting with pastels. It is the "tooth" on the painting support that holds the pastel. This acrylic ground product provides a painting surface almost like a fine sandpaper

http://www.wetcanvas.com/Community/images/05-Apr-2006/79196-pond2.jpg
Beaver Pond
Mixed Media 30x20



NOTE:
You can achieve an interesting result by using complimentary colors or colors of opposite temperature in the acrylic underpainting. The application of pastels in broken color over this underpainting will produce exciting, vibrating interactions of color.

Kathryn Wilson
04-05-2006, 01:59 PM
That's an interesting technique - the fact that you first put on the underpainting, then you put on the Golden pastel ground. I'd not thought of that before.

Advantages? Disadvantages?

BTW, I love the reflections - excellent painting!

Merriel
04-05-2006, 03:45 PM
Very nice. Thanks for all the info you are presenting on your demos. I
find them very helpful or just a great reminder of things I forget to try or do.

leirrem

ColorOfMagic
04-05-2006, 04:16 PM
That's an interesting technique - the fact that you first put on the underpainting, then you put on the Golden pastel ground. I'd not thought of that before.

Advantages? Disadvantages?
!

I started painting it just as I would have if I were going to do the whole thing in acrylic, therefore, it would have covered up the "tooth" or maybe erode it in places. By applying the acrylic ground last the tooth is preserved.
Thanks
jf

flower
04-05-2006, 04:58 PM
Thanks for a great idea I like to combine pastel with acryl and watercolour, have used gesso for the tooth but how you have done this painting is really interesting, is "golden pastel ground" an american product or could i buy it in germany????????????????

Your painting is really beautiful, I love the depth you have achieved.

binkie
04-05-2006, 08:30 PM
Gorgeous painting. Thanks for the demo.

binkie

ColorOfMagic
04-06-2006, 01:26 PM
Thanks for a great idea I like to combine pastel with acrylic and watercolour, have used gesso for the tooth but how you have done this painting is really interesting, is "golden pastel ground" an american product or could i buy it in germany????????????????.

Hi Pat...
The only way I have tried using gesso alone as the tooth, is when I applied with a typical wall paint roller. The knapp of the roller acted as tooth but was a bit too coarse. I understand that there are other commercial grounds for home preparation but I have only used the Golden product. I have also used it satisfactorily on 100%, 100# rag satin surface print paper, and cold pressed WC paper. A coat of diluted gesso on the back will counter warping.

If you email Golden they can tell you about availability in Germany: see http://www.goldenpaints.com/
http://www.shopatron.com/contact/293.0

They are a leading edge edge acrylic paint researcher and manufacturer, and will work with artists on special projects.

Before I found the Golden product I prepared a ground with gesso mixed with pumice and maybe a little acrylic matte medium (and even Elmer's glue :D ).

Jim