Internal corners and recessed areas are the hardest spots to powder coat — caused by the Faraday cage effect. Learn why traditional spray guns fail and how the Q7 handheld electrostatic powder gun, powered by Air-Free Centrifugal Atomization, delivers complete coverage
The Faraday cage effect is the biggest unsolved problem in powder coating—leaving inside corners, recessed areas, and complex geometries with poor coverage. Learn what causes it, why traditional handheld guns can't solve it, and how the Paint Brothers Q7 is the world's first portable solution engineered to break through it.
QXD Coating attended the 2025 Shanghai International Surface Treatment Exhibition (CISTEC 2024), showcasing our latest powder coating solutions and connecting with industry partners from around the world.
Discover how the QXD-Q7 electrostatic powder coating machine delivers professional automotive
parts finishing with superior durability, coverage, and efficiency.
In electrostatic powder coating, one of the most common technical challenges is the Faraday cage effect.
This problem often appears when coating deep corners, narrow recesses, grooves, edges, and complex metal structures, where powder is harder to deposit evenly.
For many powder coating factories, this leads to several production problems:
• uneven powder coverage
• thin coating in recessed areas
• excessive powder build-up on outer edges
• repeated touch-up work
• lower spraying efficiency
• increased powder waste
Learn how rotary bell spray technology improves powder coating efficiency, delivers more uniform coverage, and reduces powder waste in industrial coating operations.
Corners and edges are the hardest areas to coat evenly. Learn proven techniques and discover how rotary atomization technology helps achieve full, consistent powder coating coverage on complex workpieces.
The small rotary cup atomizer is changing how powder coating works — delivering faster charging, better corner coverage, and superior results on complex sheet metal parts.
Learn the root causes of powder agglomeration in rotary cup spray guns and discover proven solutions to prevent clumping, improve coating quality, and reduce waste in your powder coating process.
