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Ipaint airbrush studio email11/30/2022 Breaking the Surface Tension – This first layer is working hard right now to break the surface tension that develops between the slick, untreated plastic surface and the water based paints. Primers are specially formulated to break the tension and adhere to the surface, but to do their job they must be applied in thin layers.Allow this first layer to completely dry before continuing with a second layer of primer. Light First Coat – When applying the primer it is very important that you build in layers. The first layer is just a VERY light spray, just enough to tint the surface.So now we know that we are facing two obstacles to a nice paint job, (1) Too much Air Pressure, (2) Surface Tension from the untreated plastic. First, I begin by regulating my air pressure using the bleed-off valve on my compressor. For this demonstration I have set my pressure at 18 PSI, you should experiment to find what pressure works best for you based upon type of equipment that you use. Now we are ready to apply a primer layer – here’s how we do it and why we do it Paint Separation – Again, the primary result of the surface tension between the untreated plastic surface and the water-based paint.Too Heavy of Build-up – Again, the high air pressure is a contributing factor here. But, now we are also seeing the effects of surface tension or the contraction of the paint when it is applied upon the slick plastic surface – much like combining oil and vinegar. This is a common problem when using acrylic or water based paints the solution is to first lay down a primer layer before the paint.Splatters and Spidering – This is a common result of too much air pressure. Even a light tap of the airbrush trigger will result in a large amount of paint being distributed all at once. The splatter is made worse by holding the nozzle of the airbrush too close to the surface in an attempt to control the width of the spray pattern.Air Pressure – Most modern air compressors can be adjusted to regulate the pressure to your airbrush. In this photo my compressor is giving me 50psi of pressure which is a lot and leads to a loss of control over my paint flow (too much paint) and my paint pattern (too wide of spray).Of course when we have completed building our models we are excited to begin painting and so we begin painting right away without proper thought or preparation – and the results are often poor. In this photo I have replicated many common issues that modelers experience when painting and will describe why it happens and what can be done to prevent it. This step is so critical that AMMO is now adding a small metal ball into every bottle to aid in the mixing process. The first step in any painting session is to be sure that your paints are thoroughly mixed by shaking or stirring the paints within the bottle. Subscriptions TWM ENGLISH / SPANISH / FRENCH / RUSSIAN / POLISHĪt AMMO, our primary goal is to help modelers achieve their best results whether that is through the products that we produce or by explaining techniques. Great painting results cannot be achieved, however, unless you have a good foundation and understanding of some basic principles. In this tutorial I will point out a few common mistakes and then explain a few good painting habits that will help you achieve excellent results using AMMO acrylic primers and paints.
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