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Selecting the Right Aluminum Pigment: Paste, Powder, or Pellet?
Release time：
2025-04-27
Choosing the appropriate aluminum pigment form is crucial for achieving desired properties in coatings, plastics, and other applications. Aluminum pigments are typically available in three forms: paste, powder, and pellet. Understanding the nuances of each facilitates optimal selection.
Choosing the appropriate aluminum pigment form is crucial for achieving desired properties in coatings, plastics, and other applications. Aluminum pigments are typically available in three forms: paste, powder, and pellet. Understanding the nuances of each facilitates optimal selection.
Aluminum Paste: This form consists of fine aluminum flakes dispersed in a solvent. Its advantages include ease of dispersion, reduced dust hazard, and superior leafing/non-leafing control, influencing the final appearance.
Aluminum Powder: In its raw form, aluminum powder is a finely divided, dry powder. While cost-effective, handling requires strict safety precautions due to its high flammability and explosiveness. Dispersion can also be more challenging compared to paste.
Aluminum Pellets: Pellets offer a safer and more manageable alternative to powder. They are compressed forms of aluminum powder, reducing dusting and improving handling safety. However, they require a de-agglomeration step for complete dispersion.
Ultimately, the best choice depends on the specific application requirements, processing capabilities, and safety considerations. Careful evaluation of each form's properties and limitations is essential for optimal performance.
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