Basic Spraying Technique |
| The obtain the best possible finishing result it is important that the correct spraying technique is used. The spray tip and the paint used are factors that will affect the result. The size and shape of the work piece to be sprayed will of course have an influence on the finishing result. |
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The setting of the paint pressure depends on: |
| - The spray tip |
| - The desired fan width |
| - The viscosity and the nature of the material being sprayed |
| - The length and dimension of the high pressure hose |
| - The required production capacity |
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 Paint pressure The paint pressure shall be set as low as possible with respect to required paint output and finish. If the paint pressure is set too low it could lead to a bad atomization of the paint and a striped spray pattern. If the paint pressure is set too high this will lead to a lot of overspray. Recomended paint pressure in the spray gun directly before the spray tip is 120 to 150 bar. The required pressure falls from pump to spray gun.
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 Fan width All paint that does not reach the work piece will effect the environment and your paint economy. Spray tip shall be chosen according to the size of the work piece and to required capacity. |
| A correct balance between paint pressure, the size of the spray tip and the fan width is essential to the result. |
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The setting of the paint pressure depends on: |
| - The spray tip |
| - The desired fan width |
| - The viscosity and the nature of the material being sprayed |
| - The length and dimension of the high pressure hose |
| - The required production capacity |
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 Distance to the work piece Regardless of the equipment chosen the distance to the work piece should be maintained as short as possible. This is a factor that will greatly influence your transfer efficiency. Spraying distance should be chosen so the sharp edges of the spraying pattern (near the spray gun) is not used. This makes overlapping of the different paint layers easier. Recommended distance between spray gun and work piece is 250-500 mm depending on the size and fan width of the spray tip.
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| Cleaning of the spray gun At shorter stops, for instance during the night, it is enough that the spray tip is removed and put into solvent and that the outside of the spray gun is cleaned with a soft brush or a rag with solvent. At longer stops or storage always flush the gun through with solvent. Never immerse the gun in solvent since it will dissolve the lubrication oil inside the gun. |