As a leading manufacturer of high-end aluminum windows and doors, GREBORN Windows & Doors is proud to feature an in-house fully automated powder coating line at its production facility in Shenyang, China. This advanced production equipment is a core part of the company’s manufacturing system, playing a crucial role in ensuring the superior quality, consistent appearance, and long-term durability of every aluminum profile that leaves the factory.
The fully automated powder coating line operates with minimal human intervention, leveraging intelligent conveyor systems and precision robotic spray technology to achieve uniform, flawless coating on every surface of the aluminum profiles. To ensure the highest standard of finish, GREBORN exclusively uses premium powder coatings from AkzoNobel, a global leader in sustainable coatings. These high-quality powders not only offer an extensive range of color options—including standard RAL shades, custom hues, and various finishes such as matte, metallic, and textured—but also deliver exceptional performance, boasting strong weather resistance, excellent color retention, and outstanding scratch and corrosion resistance.
GREBORN’s commitment to quality starts with rigorous pre-treatment processes, which are essential to achieving the perfect coating effect. Before any powder is applied, each aluminum profile undergoes a two-step preparation process: first, industrial angle grinders are used to meticulously smooth out surface imperfections, burrs, and uneven areas, creating a uniform and smooth base. Next, the profiles are thoroughly wiped with high-purity alcohol to remove any dust, grease, or residual contaminants, ensuring the surface is completely clean and receptive to the powder coating—this critical step guarantees strong, even adhesion and prevents issues such as peeling, bubbling, or uneven coverage.
The combination of advanced automated technology, premium AkzoNobel powders, and strict pre-treatment processes results in aluminum profiles that are not only ultra-smooth and visually elegant but also sleek and sophisticated, perfectly complementing modern architectural designs. Beyond aesthetics, the high-quality coating ensures the profiles maintain their pristine appearance and structural integrity even in harsh environmental conditions, making GREBORN’s windows and doors suitable for a wide range of residential, commercial, and high-rise projects around the world. Additionally, AkzoNobel’s powder coatings are eco-friendly, zero-VOC, and free of harmful chemicals, aligning with GREBORN’s dedication to sustainable and responsible manufacturing practices.
At GREBORN Windows & Doors, the in-house fully automated powder coating line is more than just a production tool—it is a reflection of the company’s commitment to excellence, innovation, and quality. By integrating world-class equipment, premium materials, and rigorous processes, GREBORN continues to deliver high-performance, aesthetically pleasing window and door solutions that meet the diverse needs of global customers, solidifying its position as a trusted leader in the high-end aluminum building materials industry.




