I found this on internet. Cause I am noob and you all talk about atomization, I sad to my self, you ain't gonna eat me if I ask this question. I hope -.-
So is this true or false?
What is “Atomization”?
Atomization refers to how fine the particles being sprayed are being broken apart. On a garden hose, when there is a light mist of water sprayed, the nozzle is finely atomizing the water. Higher water pressure will allow for finer atomization. In an airbrush, instead of water pressure dictating the atomization, it is accomplished with air. Airbrush nozzle head assemblies have amazing baffling systems that funnel the air around the needle so that the air can atomize the paint evenly. This action gives the airbrush precision.
The better the atomization the smaller the drops of paint and the closer together they are. This provides a more solid coverage and finer lines. Atomization in airbrushes is the same as DPI (dots per inch) in computer printers. The more dots per inch the higher the resolution, which results in better output. In airbrushes the higher the atomization the crisper the image. Atomization will be rated on a 1-10 scale (1 being poor and 10 high) for a better idea of the spray quality of the brush.
Atomization is controlled by air pressure, air baffling and paint thickness
While there is nothing that one can do to alter the baffling of a given airbrush, the air pressure and paint thickness, or “viscosity”, can be adjusted to suit a particular need.
Air pressure is measured in pounds per square inch, commonly referred to as “P.S.I.”. As mentioned above, pressure influences atomization. In an airbrush equipped with a fine needle, less pressure is required to produce good atomization. This important aspect needs to be addressed before one can decide what the proper paint viscosity is. Not enough pressure results in a stipple paint effect, too much pressure causes “over spray”, a soft halo of color surrounding the area intended to be painted.
Paint Thickness Differences
The viscosity of the paint is also equally important. Viscosity is measured in Centipoise (cPs). 1 Centipoise is the resistance of water, hence water has a viscosity of 1cPs. Golden’s ready to spray Airbrush Colors have a viscosity range of 40-60 cPs, making them ideal for illustration and fine art. Most textile airbrush colors range from 100 to 400 cPs. A typical house paint is 3000 – 6000 cPs.
If the airbrush is set to an adequate pressure and spattering still occurs, the paint is too thick to be properly atomized. Sometimes raising the P.S.I. can eliminate the spattering, but the correct procedure is to thin the paint. Over thinning can also have adverse effects, therefore switching to a larger needle/nozzle airbrush is also an option the artist must consider.
So is this true or false?
What is “Atomization”?
Atomization refers to how fine the particles being sprayed are being broken apart. On a garden hose, when there is a light mist of water sprayed, the nozzle is finely atomizing the water. Higher water pressure will allow for finer atomization. In an airbrush, instead of water pressure dictating the atomization, it is accomplished with air. Airbrush nozzle head assemblies have amazing baffling systems that funnel the air around the needle so that the air can atomize the paint evenly. This action gives the airbrush precision.
The better the atomization the smaller the drops of paint and the closer together they are. This provides a more solid coverage and finer lines. Atomization in airbrushes is the same as DPI (dots per inch) in computer printers. The more dots per inch the higher the resolution, which results in better output. In airbrushes the higher the atomization the crisper the image. Atomization will be rated on a 1-10 scale (1 being poor and 10 high) for a better idea of the spray quality of the brush.
Atomization is controlled by air pressure, air baffling and paint thickness
While there is nothing that one can do to alter the baffling of a given airbrush, the air pressure and paint thickness, or “viscosity”, can be adjusted to suit a particular need.
Air pressure is measured in pounds per square inch, commonly referred to as “P.S.I.”. As mentioned above, pressure influences atomization. In an airbrush equipped with a fine needle, less pressure is required to produce good atomization. This important aspect needs to be addressed before one can decide what the proper paint viscosity is. Not enough pressure results in a stipple paint effect, too much pressure causes “over spray”, a soft halo of color surrounding the area intended to be painted.
Paint Thickness Differences
The viscosity of the paint is also equally important. Viscosity is measured in Centipoise (cPs). 1 Centipoise is the resistance of water, hence water has a viscosity of 1cPs. Golden’s ready to spray Airbrush Colors have a viscosity range of 40-60 cPs, making them ideal for illustration and fine art. Most textile airbrush colors range from 100 to 400 cPs. A typical house paint is 3000 – 6000 cPs.
If the airbrush is set to an adequate pressure and spattering still occurs, the paint is too thick to be properly atomized. Sometimes raising the P.S.I. can eliminate the spattering, but the correct procedure is to thin the paint. Over thinning can also have adverse effects, therefore switching to a larger needle/nozzle airbrush is also an option the artist must consider.
