Pintejin specializes in custom sheet metal fabrication service and more. Advanced china engineering team and machinery is what sets us apart from our competitors.Contact us(via [email protected]) to learn more about our capabilities and how we can serve you.

What are the precautions for painting sheet metal parts of electric vehicles?

1. Types of paint for automotive sheet metal parts:

  • 1. Ordinary paint is a simple and common car paint. It is characterized by low cost and simple process, but its gloss is not very good, the surface hardness is not high, and it is particularly easy to scratch. Therefore, although this type of paint has an advantage in price, it is rarely used on cars, and most of them are used on trucks and passenger cars.
  • 2. Metallic paint, also known as metallic flash paint, is a popular automotive finish. Metallic paint is added aluminum powder on the basis of ordinary paint, and a layer of varnish is added to protect it, so it looks very bright after completion. The biggest feature of metallic paint is not only high brightness, but also its hardness is much higher than that of ordinary paint, and it is not easy to scrape it off by ordinary objects, so cars, especially high-end cars, basically use metallic paint.
  • 3. Pearlescent paint, also known as mica paint, is also a popular automotive finish. Its principle is basically the same as that of metallic paint. Pearlescent paint gives people a novel, colorful and dazzling feeling.

2, paint treatment

Paint surface treatment is the next process after the topcoat. For the paint surface treatment of electric vehicle sheet metal spray paint, there will be a slight fish scale phenomenon for some electric vehicle loading paint, which is caused by the drying time difference of the paint film during the leveling process. Natural phenomena are generally difficult for us to detect. If we want to deceive the eyes of experts, we can only carry out paint treatment, which we usually call “mirror treatment”. Leveling and grinding with cosmetic sandpaper, then grinding and cutting with coarse wax composed of pumice or terracotta components to remove traces of sandpaper, the next step is grinding with fine-cut wax to remove traces of coarse wax, and then treated with reducing agent to achieve Perfect gloss, and then use the mirror treatment agent to completely remove the halo and smears. At this time, the paint can achieve a deep gloss, and the next process is to seal the glaze, so that the perfect paint effect can be achieved.

Automotive Sheet Metal Fabrication

Pintejin Sheet Metal shop offers a cost-effective solution for a wide range of industries with our custom metal stamping and custom sheet metal fabrication capabilities. Our stampnig operations include a variety of sheet-metal forming manufacturing processes, such as punching, blanking, embossing, bending, flanging, and coining. Our professional, experienced and well-trained engineers can execute the complex metal stamping operations with precision and accuracy.

No matter what your metal fabrication needs are, Pintejin can offer the right solution: from single sheet metal part or sub-assembly of stamped metal parts to turnkey solutions for mechanical and electrical assemblies. We have the technology, equipment and the experience to fabricate customised metal products from aluminium sheet metal fabrication, steel, zinc plated steel, stainless steel sheet metal fabrication, brass and copper. Designs that require CNC machining of surfaces or components can be accommodated. We can supply polished, galvanized, zinc coated or powder coated finishes for any sheet metal work or stamped metal components. Coupled with our accurate and reliable metal fabricating equipment, we guarantee precision and repeatability in custom sheet metal work. You’ll be taking advantage of the best sheet metal fabrication china can produce.


With Pintejin automated and highly streamlined sheet metal fabrication service, you can expect a sheet metal fabrication quote within 12 hours and lead times as quickly as three days.Our rapid prototyping offering also includes a solid and reliable manufacturing capability (led by our expert team with 15+ years of experience) and technical and quality assurance, including SGS and RoHS material certifications, in-process quality reports, and First Article Inspection.



  • Automotive Sheet Metal
  • Electronic Sheet Metal
  • IPC Sheet Metal
  • LED Light Sheet Metal Parts
  • Laser Cutting China

Sheet Metal Fabricator