There are two varnishing methods.

There are two varnishing methods. The first is manual, which uses rollers, spatula, brush. Only the first layer is usually applied with a spatula, the rest with a brush or a roller. The strokes with a spatula are usually applied in circular movements, which increases the strength of the coating. If you work with a brush, then it should be wide enough. The second method of application is mechanical, using a spray gun.