The truth is that there is a huge variety of liquid paint out there. Some manufacturers offer over , different colors. They can be mixed by the user to create something unique. Indeed, with liquid paint, a lot of effects on the painted surface can be reached. A glowing, metallic finish is commonplace in pieces coated with electrostatic liquid paint. Then, regarding quality, each process offers different things. Based on your needs you can make a decision.
Since the electrostatic process is so easy to do, no special expertise is required from the operators, no matter if they are going to use powder coating or liquid painting. In some cases, powder coating is not possible at all. Since for powder coating an oven is required, this process only can be applied to parts that can be transported to the premises. If the piece should be coated in situ, there is no way powder coating could be applied.
This means that contractors who go to places to paint surfaces, parts, or equipment, only can work with electrostatic liquid paint.
Another reason for avoiding powder coating could be the nature of the material itself. The parts to be coated need to be heat-resistant. So, for example, rubber cannot be powder coated. In these 2 cases, electrostatic liquid paint is not only a better option but the only option. The expertise of the operator is also another factor to think about. In the case of powder coating, if the operators do not clean the pieces properly, the whole process will fail.
The surfaces should then be completely stripped and the coated redone from scratch. When painting with liquid electrostatic the operator should be careful enough to avoid runs or drops around the surface.
Then, in both cases is needed an expert operator. Now that we are considering mistakes when applying coatings, it is worth it to mention that liquid paint can be touched up immediately to fix any possible problems. This is not possible for powder coating. Electrostatic liquid painting has another advantage: changing colors is easy to do.
This is especially important for medium and small manufacturing companies who may have just a few or only one designated place for painting. So, changing colors for them is critical to complete production. The pre-production process is also a big difference between electrostatic powder coating and liquid painting. Since for powder coating the pieces are required to be immaculate, there is a whole pre-production process to carry on.
To be powder coated, a part should be completely free of debris, oils, dirt, moisture, residue, and dust. This matter is not that complicated when applying electrostatic liquid painting.
Finally, it is fair to bring out that more materials can be finished with electrostatic liquid paint because it does not require them to be necessarily conductive. So, materials like rubber, paper, ceramic, glass, porcelain, and plastic need to be coated with electrostatic liquid paint. It is sufficient to apply a conductive primer before electrostatic painting. Then, regarding several aspects of the application, electrostatic liquid paint is the way to go. Even though electrostatic liquid paint has a lot of advantages, it is safe to say that powder coating throws away less VOC Volatile Organic Compounds to the environment.
This is possible because there are almost no toxins or VOC found in powder polymers. Also, when applying it, the unused powder can be collected and stored, instead of flying away from the booth. So, we can say that electrostatic powder coating is better for ecology. Nevertheless, for applying both processes operators should be properly covered with safety overalls and respiratory protection.
Some safety procedures to prevent electrical shocks should be carried out. Codinter have over 40 years supplying the best products for industries. We are expanding in products and markets. We not only are mean to sell products, but also offer services you need to improve your workshop efficiency. Our team is specialized in industrial finishing solutions.
Save time and money with us. So, with all that aforementioned, we can have a bigger picture about what process is the right one for your application. If you are going to set up a production plant for manufacturing household appliances and have a big budget to get all the equipment you possibly need, powder coating could be an option for you. But in almost the rest of the cases, you will find that electrostatic liquid paint can be a good fit for all your needs.
You can count on us to help you to figure out a customized painting solution that meets your needs. We operate a Machineshop in Curacao Dutch Caribbean. We do metal fabrication work especially Gates and Fences. We would like to receive moor information regarding the Electrostatic painting. Rooseveltweg 68a Willemstad Curacao. Seguro, Juan Carlos. We want to become your trustworthy supplier. Codinter has been for over four decades a products and services trustworthy supplier for automotive and oil industry.
We can and we are hoping become also your provider. Our people speak english, spanish and portuguese as well. No matter what country are you contacting us from, surely, we can understand you. Products Brands Services Blog Menu.
Electrostatic powder coating or liquid paint: Which one is best and why? Table of Contents. Codinter Editorial Team November 15, am 6 Comments. Like charges repel, while unlike charges attract. Therefore, if we put a powerful electrical charge on atomized paint by passing the paint through a field of electrons and project it towards grounded object or it has a neutral electrical condition , then we have created an environment that results in a natural electrical attraction between electrons and neutrons.
This results in more paint being applied to the target. Painting with electrostatics leads to process improvements in painting operations, ranging from automotive and aerospace to various applications that involve solvent and water-based paints. Using electrostatics can increase productivity, reduce paint overspray, and minimize paint usage. The benefits of electrostatic painting are well known for spraying solvent-based material. But do they apply to waterborne material? Find out in less than 45 minutes.
To minimize VOCs, manufacturing companies are looking for ways to reduce paint and solvent waste with more efficient equipment and automated processes. Thank you for contacting Graco. We have received your message and will contact you shortly.
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LSR Nozzles. Concrete Mixers. Concrete Pumps. Parts Feeders. Chemical Resistant Coatings Sprayers. Corrosion Protection Coatings Sprayers. Fireproofing Sprayers. The other steps for charging the drum and transferring the image to paper are the same as in xerography. Laser light can be very precisely controlled, enabling laser printers to produce high-quality images. Figure 4. The nozzle of an ink-jet printer produces small ink droplets, which are sprayed with electrostatic charge.
Various computer-driven devices are then used to direct the droplets to the correct positions on a page. The ink jet printer , commonly used to print computer-generated text and graphics, also employs electrostatics. A nozzle makes a fine spray of tiny ink droplets, which are then given an electrostatic charge. See Figure 4. Once charged, the droplets can be directed, using pairs of charged plates, with great precision to form letters and images on paper. Ink jet printers can produce color images by using a black jet and three other jets with primary colors, usually cyan, magenta, and yellow, much as a color television produces color.
This is more difficult with xerography, requiring multiple drums and toners. Electrostatic painting employs electrostatic charge to spray paint onto odd-shaped surfaces. Mutual repulsion of like charges causes the paint to fly away from its source.
Surface tension forms drops, which are then attracted by unlike charges to the surface to be painted. Electrostatic painting can reach those hard-to-get at places, applying an even coat in a controlled manner. If the object is a conductor, the electric field is perpendicular to the surface, tending to bring the drops in perpendicularly.
Corners and points on conductors will receive extra paint. Felt can similarly be applied. Another important application of electrostatics is found in air cleaners, both large and small. The electrostatic part of the process places excess usually positive charge on smoke, dust, pollen, and other particles in the air and then passes the air through an oppositely charged grid that attracts and retains the charged particles.
See Figure 5. Home precipitators, often in conjunction with the home heating and air conditioning system, are very effective in removing polluting particles, irritants, and allergens. Figure 5. Air is passed through grids of opposite charge. The first grid charges airborne particles, while the second attracts and collects them. The Integrated Concepts exercises for this module involve concepts such as electric charges, electric fields, and several other topics.
Physics is most interesting when applied to general situations involving more than a narrow set of physical principles. The following worked example illustrates how this strategy is applied to an Integrated Concept problem:. Suppose a tiny drop of gasoline has a mass of 4. To solve an integrated concept problem, we must first identify the physical principles involved and identify the chapters in which they are found.
Part 1 of this example asks for weight. Part 2 deals with electric force on a charge, a topic of Electric Charge and Electric Field. Part 3 asks for acceleration, knowing forces and mass. The following solutions to each part of the example illustrate how the specific problem-solving strategies are applied. These involve identifying knowns and unknowns, checking to see if the answer is reasonable, and so on.
Entering the given mass and the average acceleration due to gravity yields. Here we are given the charge 3. Since the drop has a positive charge and the electric field is given to be upward, the electric force is upward. This is an upward acceleration great enough to carry the drop to places where you might not wish to have gasoline. This worked example illustrates how to apply problem-solving strategies to situations that include topics in different chapters.
The first step is to identify the physical principles involved in the problem. The second step is to solve for the unknown using familiar problem-solving strategies. These are found throughout the text, and many worked examples show how to use them for single topics. In this integrated concepts example, you can see how to apply them across several topics.
You will find these techniques useful in applications of physics outside a physics course, such as in your profession, in other science disciplines, and in everyday life. The following problems will build your skills in the broad application of physical principles.
The Unreasonable Results exercises for this module have results that are unreasonable because some premise is unreasonable or because certain of the premises are inconsistent with one another.
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