Acrylics and oils do not mix.
The reason is simple. One medium is oil-based and the other is water-based – and oil and water never meet. You can’t mix acrylic and oil together as it will create a mess.
In addition to using the two mediums together, there are other methods that are a great help to artists.
In oil painting, it is a traditional technique to under-paint or to some extent sketch on canvas before finalizing your painting. Oil also takes a long time to dry, especially if the paint is thick or contains a large amount of medium oil. This can range from weeks to months, depending on the amount of moisture in the environment.
The usual method of oil painting begins with painting where the necessary ideas and designs are developed to some extent. Underpainting also has the added benefit of being visible through the other glass layers on the top and affecting the painting thus created. Using an acrylic layer as an underpainting has all the benefits of reducing oil costs while also saving time.
What about acrylic and why?
Acrylic is a polymer-based medium and in nature, it is the basic plastic. Rapid drying time can be a hassle when one wants to create and blend a painting, when an artist wants to establish a painting quickly it can be a blessing. Acrylic can be used with all common oil-based techniques, including glazing. Acrylics have a great response to thinning and can be painted in succession fairly quickly. Anyone can quickly paint with acrylic.
Although many critics of Acrylic claim that it does not work well on medium canvas, in practice this is not the case. Acrylic canvas boards adhere well to rough surfaces or stretched canvas frames. All you need is a basic combination of acrylic and water or acrylic medium specially formulated to dilute the paint. Start with washing on canvas.
Wash water is a mixture of paints. Using a large brush paint on the canvas and sketch your paintings and areas. As a test, you can use the human torso as a subject. Apply a thin acrylic black or gray color to your brush, sketching the shape of the head and shoulders. The use of acrylics in this way gives the artist a sense of freedom of expression, as this is the initial design of the painting.
Continue your sketch using only black or black colors. You will find that acrylics take only a few minutes to dry and can paint each layer in a matter of minutes.
Keep experimenting with thin acrylics until you define your general design of the painting.
Acrylics and textures
One of the great advantages of using acrylic N as an underpainting oil is the development of the structure. Due to its drying nature, Acrylic can build textual areas within minutes. On your test design, experiment with certain areas. For example, use hair or shaded areas of the face and, taking some pure acrylic from the tube, apply the paint to some areas with a palette knife. We will practice a lot before gaining any confidence.
This is because the final effect on the structure is only after applying oil to the texture. Experience in painting is essential and don’t be discouraged if for the first time some paintings don’t live up to your expectations. Remember that many famous artists, even at the height of their success and artistry, threw the canvas without “work”. The texture can be applied to other areas as well. The use of structure is a broad subject and we are only focusing on a few basic issues here.
Once you are satisfied that you have developed an underpinning that will guide you in your work, it is time to start painting in oils. To make sure your initial coat of oil paint is thin, use a mixture of turpentine or turpentine and linseed oil. The first is to take advantage of the use of oils. Most importantly, make sure the acrylic is completely and completely dry. Wet acrylic mixed with oil is a disaster. Always remember that this process cannot be respected.
In other words, you can’t paint acrylic on oil! Another important point is to separate the oil paint and acrylic taps so that you don’t accidentally paint with acrylic instead of an oil tube. A lot of the time I’ve had a big tap on the canvas or an oil tap in the throat of the movement, just to know it was a tube of acrylic paint.
As the work progresses
You can start applying deeper and more layers of oil in your painting. Initially, the purpose of painting thinly in oil is to guide acrylic to a lower cost. Another important technique is called abrasive backing. This means you can take a clean cloth and rub the oil on the back to show the layers of acrylic underneath. As you progress and use these techniques, you should know that acrylic under-painting enhances the depth and luster of your oil painting.