What is the central wet zone?
If you know enough about the pattern of the spray gun and observe it in detail, you will find that the paint converts the liquid into particles, and when it is sprayed onto the surface, it is an oval or a circle.If you look closely, you will see that this pattern has different layers.That’s what we call the three stages of atomization.
- The core area is called the central wet zone.
- One layer beyond that is the atomization area.
- The outermost one is the overspray zone.
Please look at the picture below.
How performance about the Three-stage atomizing zone?
- Central atomization area: The coating layer is thicker, and the sprayed particles are more delicate, the color is the deepest, so it is suitable for primer.
- In the atomized area on both sides, the paint is evenly distributed, a relatively light color, which is mainly used for coloring and glazing.
- In most of the outer overspray area, the particles are large, more dispersed paint.
Why stretch the central wet zone?
- For high viscosity coatings, stretch the central area to make the paint spray more evenly.
- The vertical stretch spraying area tends to “I” type, which is convenient for fine spraying and improves the control of the spraying effect.
- Reduce the over-spraying area, improve the utilization rate of paint and reduce the emission of harmful substances.
What products apply in this technology?
Now, the CFC, EFC, WWP HVLP/ APR series are adopted the central wet zone stretching technology, elongated overall spray amplitude, and make the paint film as thin as possible, conducive to the dying of water-based paint.
More questions, please contact us, glad to know your comments!
