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Under the Knife - Using Painting Knives to Create Impressionistic Paintings

Under the Knife 
 Using Painting Knives to Create Impressionistic Paintings in Oil

photo of palette knives
A small collection of my painting knives

     We are always trying different painting tools in an effort to discover new ways of image making. Different tools can help us get out of our comfort zones, where we are divorced from familiar, reliable techniques and perhaps even a little uneasy with the process. This is good! Good art can come from being "in the zone", or highly focused on what we are doing, but it can also come from a place where the outcome is highly uncertain and we no longer have the accustomed control of our materials. This is the area where the mind can play more freely with ideas, because our expectations of so-called success are different than when we work with our usual reliable techniques. The only way to learn about a new tool is to experiment, play, have fun and see what is possible. If you have never tried painting with knives before and you'd like to shake up your painting style a bit, we hope this article will encourage you to do so.

photo of mixed oil paint on palette
My inital color string

   Before I begin painting, I prefer to develop the main mass-tones on my palette by mixing color strings. This is my initial string which covers the first lay-down of cool yellows and greens. Here I have started the string with Cadmium Yellow Medium into Cobalt Blue, then Cadmium Lemon in the center into Cobalt Blue and then Ultramarine for the deepest blue-greens. This string is about 24 inches across.
I will use this palette mix for the entire painting, adding or side-mixing additional warmer or cooler passages from this master string as needed. For example, when I need a very warm orangeish color, I'll draw paint from my master string off to the side and add Cadmium Orange or maybe a bit of Cadmium Red to create what is needed. In this way, my palette remains harmonized to the original color string and that harmony unites the painting.

drawing on masonite panel

   This is my 11.5 x 27.5 masonite panel which I have sealed and triple-primed with gesso. My drawing is fairly precise, having worked out the composition in sketches. I use charcoal or pencil and seal that with a light spray of fixative. My initial paint strokes go down in the center so that I can work out gradually to the ends.

painting with palette knivesin oil on panelBlocking-In

   One can't really block in a painting knife painting like a painting produced with brushes. Painting knives leave distinctive marks - that's what we're after - and we want those marks to remain. Instead of an overall block-in, I find it useful to establish bits of darks and lights across the entire panel so that I can make value judgements compared against those as I work. I also use Liquin or NeoMegilp mediums to speed drying when I paint impasto so that I can keep adding to the previous layers day by day.

painting with palette knives in oil on panel

   At this stage I am developing my mid-values and darks. The white of the panel will be my lightest value, and I intend to leave that showing in places. This is the playful stage and is a lot of fun. I try different textures with different knives, pushing the paint around until I like the results. I try interesting color combinations and mixes to see what happens. If they are not working, it is a simple matter to scrape them off the smooth panel with the edge of a big knife.

   painting with palette knives in oil on panel, detail.    painting with palette knives in oil on panel, detail.

   This is what I mean about color - look at those lavenders and mauves on the aspen trunks. Not exactly what one might expect, yet they work beautifully with the yellows. This photo shows how I sometimes use a broad flat sable to blend and blur initial background passages to enable the next layers to create texture and detail.

painting with palette knives in oil on panel, detail.

   You can see here how I layer-up values and work the composition from large broad shapes into smaller shapes. What I love about this process is the freedom from precise control. I am only concerned with value, color and edges in my composition, not the exact shapes or details. This keeps me thinking about the picture as a whole and the feeling that I am trying to evoke.

   These images generally represent a painting session, whether short or long, so they illustrate not only the progress I make day to day, but also what the order of priority is. I want to create a strong focal point focused on the three large Aspens and the green-yellow mass of colorful foliage in the center.

painting with palette knives in oil on panel, detail.
Using the larger broad knife to "plaster" in a patch of dark brown.

   With a big knife like this, I can either use the flat of the blade to lay in a big swipe or the flexible tip to suggest smaller areas of detail. Of course, once the paint is on, the knife can also be used to scumble and blend and create interesting textures. Look how loose and suggestive the paint surface is becoming.

painting with palette knives in oil on panel, detail.
          A juicy thick application of color and some scumbled paint next to it.

   I like to make sure my values are not getting out of control in a colorful painting like this, so I use my camera as a black and white viewer to check them. On top is my reference photo, below that is my painting. My mid-values and highlights are right on. They are the hardest to get right in my view. What remains is to build my spread of darks to create depth.

reference photo of aspens

painting with palette knives in oil on panel black and white

   painting with palette knives in oil on panel
Compare this with the black and white above and you can see how useful that technique is.

photo of oil colors in palettePalette mix for the three large aspens.











 

painting with palette knives in oil on panel

   In this photo the large aspens are essentially finished, along with the entire right third of the painting. I have begun to build depth and detail in the foreground and gradually working toward the far left.







painting with palette knives in oil on panel, detail.   This shot shows that I've established the trunks on the left and begun building the tonal depth toward the finish.










painting with palette knives in oil on panel, detail.   Close up of the wonderful surface textures which knives can produce. As the previous layers dry, it is a simple matter to scrape color across the top of  this surface and create the illusion of fine details like leaves or sparkles of sunlight. Step back a pace or two and voila! The illusion snaps into place to make a very convincing and effective impressionistic vision of paradise.





finished oil painting of Aspen trees, October Impression, by John Hulsey
The finished painting, October Impression, 11.5 x 27.5 inches.

Related article: Brushes? We Don't Need No Stinking Brushes! - Plein Air Painting with Painting Knives.




Copyright Hulsey Trusty Designs, L.L.C. (except where noted). All rights reserved.
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About Us

Photograph of John Hulsey and Ann Trusty in Glacier National Park
We are artists, authors and teachers with over 40 years of experience in painting the world's beautiful places. We created The Artist's Road in order to share our knowledge and experiences with you, and create a community of like-minded individuals.  You can learn more about us and see our original paintings by clicking on the links below.
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