Oil Paintings on Canvas - The Paints Behind the Creations

Oil paintings on canvas are created by adding pigment to oil and then applying it to a canvas sheet that has been stretched taut. Linseed oil was commonly used in early modern Europe, but safflower, walnut, and poppy seed oil has also been used. Each type of oil allots a different length of drying time, as well as the varying amount of yellowing that occurs as the painting dries.

The benefits of oil-based paints include the ability to apply paint to a canvas and not have the paints quickly run into one another. When paints run into one another, they tend to alter the desired color and can cause a painting to turn out far different than the original idea planned for it. The drying time is longer than with water-based paints, so mixing colors directly on a canvas is possible.

The oil allows for the mixing to be possible for a longer period of time, since most water-based paints dry almost instantly. For example, if more white needs to be added to lighten a color that has already been applied, it will mix better with the paint. On the other hand, water-based paints will often completely cover the current color it is being added to.

Traditionally, oil paintings are sketched out onto the canvas first and then color is added to them later. Charcoal is the typical medium used for sketching the subject of the painting. In order to shorten or lengthen drying time of oil paints, turpentine or mineral spirits can be added to the paints. When multiple layers of paint are added to the canvas, each layer should contain more oil than the last layer. This addition of oil each time reduces the risk of cracking and peeling that can occur.

Linseed oil is the most common base in oil paints. This kind of oil comes from the seed of the flax plant. For less yellowing during the drying period, some people find that using safflower oil helps. While lighter colors will hold their true color better with the safflower oil, this type of oil does have a much longer drying time. Paints made with either of these oils cannot be cleaned up with water.

Two new types of oil-based paints have arrived, thanks to the advancement of chemistry. One type of paint contains water miscible oil, which means that it can be cleaned up with water.

The other type of paint has an endless amount of drying time since heat is required to dry it. This latter type of oil-based paint must be heated between 265 to 280 degrees Fahrenheit. Creations made on canvas with this type of paint can be altered until the extreme heat is added.

Oil paints that are already mixed and pre-stretched canvas can be purchased from art supply stores. While this is often the easiest route to take for making oil paintings on canvas, some artists enjoy crushing their own pigment and mixing paints personally. No matter how the materials are acquired, the freedom of painting on canvas that oil paints ensue is a great experience for even the most novice artist.

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An Introduction to the World of Oil Paintings

The journey of the art of oil painting is an intriguing one. Certain periods have proved to be more receptive of the art form than others. This form of painting is believed to have originated in Afghanistan. When the process was first invented, it was not used for art purposes; however, artisans quickly realized the potential that oil painting possessed. From Afghanistan, the form traveled through Europe to finally arrive in central Europe, the art capital of the world, sometime in the 15th century. There are records of European artisans using this from of painting in the 15th century. The form really came into its own during the renaissance and post renaissance periods in Europe and the English Mainland.

The term oil painting denotes the use of oil in the paintings. For one, the pigments used to paint are mixed with oil or rather the base medium is oil. The oil that is usually used is Linseed Oil. Linseed Oil is harvested from Flax seeds that are easily available. A few other oils are used in the place of Linseed Oil. These include Walnut Oil and poppy seed oil. Mixing the dry pigments in oil helps to bring out a version of the color that no other medium can. Different oils produce different gloss intensities. The sheen can therefore vary depending on the oil used to mix the pigments. The oil-pigment mixture is painted onto a canvas. Oil Paintings are strictly canvas art. Canvas Art refers to those forms that use the canvas as a base. A thinner material may not be able to sustain and retain the color and effect.

Oil painting is never done directly on a canvas. The design or scenery s first etched onto the canvas using a pencil or charcoal based drawing implement. The oil mixed pigments are then slowly colored in. The oil based pigments do not dry quickly. Therefore the process of painting has to a slow one. Sometimes to hasten the process, artists mix a quantity of turpentine into the mixture. Since turpentine dries quickly, it helps the oil paints to also dry faster. Very rarely does the artist manage to paint the entire picture in one coating. If the artist decides to use a second coating, then the mixture has to be changed.

Every subsequent layer of oil paints should have a higher content of oil. This actually helps to quicken the drying process. Given that the paints are rendered heavy by the thick oil base, drying oil paintings is a real skill and one which requires patience. The oil paints do not dry by evaporation, like other paintings, such as water color paintings. Oil paintings dry by the process of oxidation.

Many oil paintings also make use of other mediums. The most commonly used ones are Resins and wax. Both add to the effect of the oil pants and at the same time affect the sheen and texture of the oil paints. The use of other mediums can even adversely affect the design of the painting. But this is true for any art form that attempt to mix two different mediums. The oil paintings have to be coated with a layer of varnish before it is considered finished. The varnish helps to protect the painting.

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