Pigments Powder for Powder Coatings

Innovative Pigments for the Powder Coating Sector

Deqing Demi Pigment Technology Co., Ltd. is a leading supplier of inorganic powders for the global powder coating market. We provide the heat-stable and UV-permanent colorants required for architectural, automotive, and appliance finishes. Our manufacturing process ensures that our pigments have the consistent particle size necessary for uniform charging and "wrap-around" during application. We support powder producers in achieving high-quality, zero-VOC finishes that meet the most demanding environmental and performance standards.

Powder Coating Application Fields

• Architectural Aluminum: UV-stable coloring for window frames and facades.
• Home Appliances: Heat-resistant finishes for ovens, washers, and dryers.
• Automotive Parts: Durable coatings for wheels, frames, and engine components.
• Outdoor Furniture: Weather-resistant pigments for metal garden and park furniture.

Powder Coating Technical Specs

Attributes for Dry-Spray Finishing

• Thermal Permanence: Zero color change during the bake cycle in industrial ovens.
• Efficient Charging: Controlled electrical resistivity ensures high transfer efficiency.
• Excellent "Flow-Out": Particles do not impede the resin's ability to form a smooth film.
• High Hiding: Complete opacity even at thin-film applications (40−60μm).

• Q: Do these pigments cause "orange peel" in the finish?

  A: No, our fine particle size ensures the pigment does not interfere with the resin's surface tension, allowing for a smooth, high-gloss finish.

• Q: Are they suitable for "low-bake" powders?

  A: Yes, our inorganic pigments are stable across all standard and low-temperature curing ranges.

Precision Particle Engineering

We utilize specialized air-classification to ensure that our powder coating pigments have an extremely narrow size distribution, preventing "oversized" particles that could cause surface defects or "seeds" in the cured film.

Batch Uniformity: We provide spectrophotometric data for every batch to ensure that the "let-down" color in the powder coating resin is identical, which is critical for maintaining color standards across different coating lines.

The Science of Electrostatic Integration

In powder coatings, color science is linked to "Particle Morphology." We use Scanning Electron Microscopy (SEM) to ensure our pigment particles are shaped to promote optimal electrostatic charging. We use the CIELab system to measure the "Cured Color" rather than the "Powder Color," as the refractive index changes when the resin melts. By providing pigments with a Delta E of less than 1.0 after curing, we ensure that multi-component assemblies (e.g., a refrigerator door and its handle) match perfectly in all lighting conditions.