You may be wondering how to varnish oil paintings. The process is actually very simple and straightforward. There are a few important things to consider before starting. First of all, you need to know what type of varnish you should use. The best option is to use a soft, flat, and densely packed brush. Afterward, it is important to hold the painting to a light source and observe the surface. Look for any problem spots or uneven brush strokes.
Then, you must know how to apply varnish to oil paintings. The application of varnish is a very simple one and doesn't need to be precise. To begin with, pour a small amount of varnish into a glass bowl and apply it to the painting. The first coat of varnish will begin to dry almost immediately, so you must brush over any sticky spots as soon as you apply it. Repeat this procedure for a second thin layer. Always remember that the first layer will be the hardest to apply because it will start to stick to any brush or paint residue.
Once the painting has dried enough, you can begin applying the varnish. You can use a brush or sponge to apply it to the painting. Since the varnish is not available in a spray form, you must test it first by moistening a Q-Tip or tissue paper with solvent. Make sure the varnish is not too thin or too thick if it does not stick to the paper. If you notice any spots or areas that do not adhere to the surface of the painting, try adding a second thin layer at a slightly different angle and direction. You should also avoid hanging your painting over an open fire, over a radiator, or in a bathroom.