It is a known fact that it is very difficult to paint on a smooth and a non-absorbent surface as it does not allow paint to stick on it. This suits to glass painting as glass is also a smooth and a non-absorbent material. So it needs a lot of courage and caution while working on glass. Due to this property of glass it is advisable to simplify the outline of the subject. There is a wrong notion that by simplifying the subject the originality of the work will be affected. But it is not at all true. Experienced artists are of the opinion that simplified subjects, after completion has given appealing results. In the beginning, it requires high concentration and skill to alter the outline without affecting the surrounding areas. But with experience you can master the skill of using glass as a support in painting.
The material required for glass painting are the following. First thing you need is a glass of your choice. But beginners please choose a glass of small size. Next comes to the selection of paints. There are many types of paints available in the market which will adhere in a smooth surface. This includes oil paint, ceramic paints, opaque and transparent paints, metallic colors etc. Other material needed for painting on a glass are brushes, penholder, some cups or trays to mix the colors, a palette knife, cleanser or thinner, used clothes, paper towels and cleanser, cello tape.
The first step is the preparation of glass which includes choosing a glass without any defect. Further you should remember that the glass which you use for painting has got two sides, one the painting side and other the viewing side. In order to protect the edges of the glass please take your cello tape and apply it carefully on all the four edges of the glass. After that, clean the surface of the glass using a cleansing agent. Then allow it to dry. For the safety of the glass it is advisable to keep the glass between the sheets of news paper. The second step in glass painting is tracing of outlines. Paint suitable for tracing outlines in a smooth and non-absorbent material like glass is easily available in the market which includes oil-based paints, water-based paints, acrylic paints and ceramic paints. From this you can choose according to your preference. Always keep in mind that if you are planning to use oil-based paint to trace the outline then use water-based paint to apply on the top of it . This will help you to check the vanishing of colors. In order to make sticking of the paint in the glass easier it is better to use a liquid paint. The third thing that you have to concentrate is in painting outlines. If you are a good artist then you can apply outlines directly to the glass. But if you are a poor painter then you can sketch the outline with the help of a carbon paper. Or you can also use a tracing table to sketch the outlines. The fourth step is applying the paint in the outline. This is one of the important step which helps to get a perfect finishing to your painting. In order to avoid the streaky appearance make it a practice to mix and blend the colors in a palette. When you are working on reverse glass painting take care that there is no dust in the unpainted area as this will affect your painting. Once the outline of your subject is completely dried, you can very well start filling of paints. Begin filling colors from the smallest and most detailed areas and then go for backgrounds. After finishing coloring allow it to dry. Always be cautious of applying the correct color contrast so that it should look appealing to your eyes.
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