Wholesale Flake Zn-AI Alloy Powder Supplier, Suppliers

Appearance: Lamellar shape Advantages: Nanofabrication, multi-coated layer processing, slower sedimentation, longer salt fog time, better dispersibility, better shielding/protection effectiveness, Application: Mainly used in Dacromet /Geomet coating industry, widely used in organic and water based painting, powder coating and painting for ships and warships, automotive parts, vehicles, rail carriage, electricity infrastructure, steel structure building materials and the like surface treatment. Chemical property and features: The flake alloy powder has both of advantages of the zinc flake powder and aluminum flake powder; making it show the equilibrium performance in the material producing, anti-corrosion and coating appearance features. The flake Zn-AI alloy powder has better ductility, easily controlled flakes' size, higher specific surface area; it has not only the anodic protective effectiveness as the pure zinc layer protecting the basic steel matrix, but also has adequate aluminum to make it form into the integrated aluminum oxide(AI2O3) protecting film to improve the anti-corrosion performance. With the aluminum, s nature, the flake alloy powder has the beautiful metallic shining appearance that the zinc powder does not have. Considering to the different density of the zinc powder and aluminum powder when in mixing as the coating material, the problem of the coating liquid inhomogeneity can be easily solved from replacing by the flake Zn-AI alloy powder; which making it as the perfect anti-corrosion pigment material for the free of Chromium (Cr) Dacromet coating.

Product Description

Flake Zn-Al Alloy Powder

Grade PSD / D50
(µm)
Flake Thickness
(µm)
Water Covering
(min cm²/g ±10%)
Bulk Density
(g/cm³)
Packaging
(KG)
ZNAL20-1 13 - 15 0.05 - 0.12 > 10000 0.50 50 / 25
ZNAL20-2 5 - 7 0.02 - 0.10 > 15000 0.50 50 / 25
Frequently Asked Questions
What are the primary applications of Flake Zn-Al Alloy Powder?
Flake Zn-Al Alloy Powder is widely used in anti-corrosion coatings, dacromet coatings, marine coatings, automotive parts, and high-performance metallic pigments where superior barrier protection and sacrificial cathodic protection are required.
What is the difference between ZNAL20-1 and ZNAL20-2?
The main distinction lies in particle size and surface coverage. ZNAL20-2 features a finer median diameter (D50: 5-7 µm) and higher water covering capacity (>15000 cm²/g) compared to ZNAL20-1 (D50: 13-15 µm, >10000 cm²/g), making ZNAL20-2 ideal for thin-film applications requiring smoother surface finishes.
What does the "Water Covering" parameter signify?
Water covering area reflects the leafing ability and effective surface area of flake powders. A higher value indicates superior flake morphology, allowing a thinner, more continuous overlapping protective barrier layer in protective coating formulations.
What standard packaging options are provided?
Standard packaging is supplied in 25 KG and 50 KG steel or fiber drums lined with sealed plastic inner bags to maintain product purity and prevent moisture absorption during transit.
How should Flake Zn-Al Alloy Powder be stored?
It must be stored in a cool, dry, well-ventilated warehouse away from direct sunlight, moisture, open flames, and incompatible substances such as strong acids, alkalis, and oxidizers. Keep containers tightly sealed when not in use.

Related Products