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Spray Painting Tips and Techniques

Spray painting is a painting technique in which a spray paint gun is used to paint through air onto any surface. This article throws light on the basics of spray painting and different spray painting tips and techniques.


Spray Painting Tips and Techniques

Spray painting is used to coat any surface varying from furniture, houses to cars, trucks with paint, varnish, ink, etc. Though a basic spray painting system comprises of a typical spray painting gun, pressurized paint container, compressed air system and flexible tubes. The most important equipment used in spray painting is the air spray gun. There are mainly two different methods of air gun spraying: the manual operation and the automatic process. In the manual operation, the air spray gun is hand-held and moved all over the area to be painted. For a continuous, smooth coat, each stroke should overlap the previous stroke. In the automatic operation, the gun head is set on a mounting block from where the stream of paint is delivered. For painting large surfaces having an even coat of paint, air guns are the best equipment to use. But for detailed work like photo retouching, painting nails or fine art, air brushes are primarily used. Hence, if you are planning to paint a car or furniture, here are some spray painting tips and techniques.

Spray Painting Techniques

Some of the common techniques employed in spray painting are described as follows:

    * HVLP (High Volume Low Pressure): This technique is quite similar to a common spray gun as it uses a compressor to supply the air. It requires a low pressure and higher volume of air to aerosolize and propel the paint from the spray gun on to the surface. This technique is usually applied in the automotive, furniture finishing and the cosmetic industry.
    * LVLP (Low Volume and High Pressure): This technique uses a lower volume of air to atomize the paint. The spray guns along with a small compressor work at low pressure and also have a low volume of paint coating. It is mainly used in small shops.
    * Electrostatic: In this technique, an electrically charged powder is sprayed on the surface which is already having an opposite electrical charge. The surface is baked to attach the paint properly. The technique is eco-friendly as there are no solvents that evaporate in the air or go down the drain. Electrostatic painting is more durable than the liquid painting and used to paint vehicles and other office equipment.
    * Airless Spray: In this technique, spray guns are connected to a high pressure pump to atomize the coating by employing variety of tip sizes to reach the desired atomization. Airless spray gun coatings are mainly used for industrial and chemical applications as they penetrate better into pits and possess a thick wet coating.



Spray Painting Tips

Here are some simple spray painting tips that will be quite beneficial for beginners:

    * Always begin by buying few spray cans of paint, as it is an inexpensive way to determine how spray painting is different from the usual painting which is done with a brush or roller.
    * Make sure the surface you are painting is clean, dust free and dry.
    * To have optimum result, avoid painting in extreme humidity, and paint when the temperature ranges between 50 - 90° F. If there is windy and dusty air, avoid painting as the dust may settle on the wet paint.
    * The most important point to be kept in mind while spray painting is to spray thin coats of paint and keep the spray nozzle moving. Don't stop your hand, else the paint will accumulate at one spot.
    * While painting, hold the spray paint can at a distance of 10 - 14 inches away from the surface.



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