Analysis of the advantages of powder coatings and traditional coatings

The performance of powder coatings is excellent, and the market share is steadily increasing. So what are the advantages of powder coatings compared with traditional coatings?

1 Reduce environmental pollution

As the environmental protection laws and regulations on the content of volatile organic compounds (VOC) in the atmosphere become more and more stringent, the coating industry seeks various ways to improve coating technology to reduce environmental pollution. After long-term experiments and tests, it is finally found that powder coating is the most ideal coating technology that can be achieved at present.

Powder coatings do not use organic solvents, water and other volatile solvents, so powder coatings are inorganic solvent-based coatings, which greatly reduces safety hazards caused by solvents, such as organic solvent poisoning by operators caused by organic solvents ; Or because of fires caused by organic solvents. Since the introduction of powder coatings in the 1950s and 1960s, no major safety accidents caused by powder coatings have occurred.

Powder coatings are 100% solid powder coatings, which can be sprayed fully automatically. Excessive or oversprayed powder coatings can be recycled and reused through the recycling system device. Therefore, powder coatings can reach almost 100% utilization rate, which enables the coating industry to reduce waste disposal and reduce environmental pollution to lowest.

2. Save energy

Looking at the energy costs of powder coatings and liquid coatings. Liquid coatings contain organic volatiles, causing the volatiles to evaporate into the atmosphere; while powder coatings will not have such waste, which greatly reduces the use of energy.

The electrostatic coating machine has a large output and a thick film can be obtained by one spray. There is no need to repeat spraying or primer. In the case of the same film thickness, the coating operation using powder coatings is faster and can be saved Time costs.

SettingTime is not required in painting equipment, which can save equipment space. In addition, the baking time of powder coating is also less than that of liquid coating. This can greatly reduce fuel energy, shorten coating lines, increase productivity, and promote overall production efficiency.

3. Excellent film performance

As long as the powder coating is directly sprayed on the iron or aluminum materials that have been properly pre-treated, the surface of the coating film with excellent performance can be obtained by baking, such as the durability of the coating film, including: abrasion resistance, Impact, adhesion, toughness, corrosion resistance and chemical resistance performance, etc. In addition to the above advantages, powder coatings for outdoor use also include high weather resistance and pollution resistance. Especially for thicker coatings, the powder coating can reach 50-300μm in one spray, and it has good leveling properties. It will not drip or stagnate when thickly coated with solvent coatings.

In order to enhance the multi-functionality of powder coatings, the color, gloss and surface flatness can be adjusted according to customers' preferences, even special metal powder coatings and some special wrinkle powder coatings.

4 Considerable economic benefits

Because the powder coating is sprayed using electrostatic principle, the coating equipment can be fully automated without wasting human resources. Even if manual assistance is required, painters can spray a good film without long-term training. The powder coating is 100% solid content and does not need to add any solvent, saving packaging and reducing storage space. In the spraying process, if there is a poorly sprayed part, it can be blown off with an air spray gun before baking, and then sprayed on. Therefore, it is unlikely that the surface flow and dripping will occur, which reduces the probability of repainting and rework. Among the components of the coating film, solvent-based coatings are about 60-65%, while powder coatings can reach almost 100%, and the powder that is not attached to the object to be sprayed can be recycled and reused. Generally speaking, the use of powder coating technology can improve production efficiency and economic efficiency.