Alumina Zirconia Blast Media ZA40

ZA25 and ZA40 Zirconia fused alumina are manufactured using an advanced melting process and have a service life that is 3 to 6 times longer than traditional sandblasting media, which can significantly reduce the need for particle embedding and waste disposal. ZA25 has stronger cutting force and is suitable for heavy cleaning, scale removal, and high-pressure sandblasting equipment; ZA40 has greater toughness and durability, and is suitable for high-precision processing and applications with high surface finish requirements, especially for low-pressure sandblasting equipment.

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Approved to MIL-P-85891A

Product list

ZA25

ZA40

| Features

Extremely high durability.

Provide uniform surface texture and matte finish.

Reduced media breakdown improves cleanliness and reduces contamination risk.

Suitable for a wider range of materials, including sensitive ones.

High toughness, but less aggressive than ZA25.

Also has high strength under heavy loads.

Suitable for pressure and suction sandblasting machines and grinding wheels.

Suitable for deburring and surface finishing processes.


• Extremely high durability.
• Provide uniform surface texture and matte finish.
• Reduced media breakdown improves cleanliness and reduces contamination risk.
• Suitable for a wider range of materials, including sensitive ones.
• High toughness, but less aggressive than ZA25.
• Also has high strength under heavy loads.
• Suitable for pressure and suction sandblasting machines and grinding wheels.
• Suitable for deburring and surface finishing processes.

ZA40 Alumina Zirconia Blast Media
Typical values	ZrO₂	Al₂O₃	Others
%	40	60	<1
Item	ZA40
Specific Gravity	4.60g/cm³
Bulk density (LPD)	2.15–2.45g/cm³
Vicker hardness (100g Load)	19 GPa
Melting Point	1900°C
Particle Shape	Monoclinical tetragonal
Chemical Property	Amphoteric
Reaction with Acid and Alkali	NO
Maximum Service Temperature	1600°C
Crystal Size	≤20um
Reaction with Carbon	Forming carbide since 1650°C
Color	Gray
Specific Heat Capacity (cal/g·C)	0.2205 (50–500°C)
Heat Conductivity	0.2718 cal/cm²·sec·°C
Linear Expansivity (X10⁻⁶)	6.82 (100–700°C)

ZA40 Alumina Zirconia Blast Media
Typical values	ZrO₂	Al₂O₃	Others
%	40	60	<1
Item	ZA40
Specific Gravity	4.60g/cm³
Bulk density (LPD)	2.15–2.45g/cm³
Vicker hardness (100g Load)	19 GPa
Melting Point	1900°C
Particle Shape	Monoclinical tetragonal
Chemical Property	Amphoteric
Reaction with Acid and Alkali	NO
Maximum Service Temperature	1600°C
Crystal Size	≤20um
Reaction with Carbon	Forming carbide since 1650°C
Color	Gray
Specific Heat Capacity (cal/g·C)	0.2205 (50–500°C)
Heat Conductivity	0.2718 cal/cm²·sec·°C
Linear Expansivity (X10-6)	6.82 (100–700°C)

F Sand	g/cm³	F Sand	g/cm³	F Sand	g/cm³
F22	2.12–2.18	F24	2.09–2.15	F30	2.00–2.12
F54	1.92–2.03	F60	1.93–2.00	F70	1.88–2.01
F120	1.84–1.95	F150	1.83–1.95	F180	1.81–1.93
F36	1.99–2.10	F40	1.96–2.08	F46	1.94–2.05
F80	1.88–1.98	F90	1.86–2.00	F100	1.85–1.97
F220	1.82–1.92

F Sand	g/cm³	F Sand	g/cm³	F Sand	g/cm³
F22	2.12–2.18	F24	2.09–2.15	F30	2.00–2.12
F54	1.92–2.03	F60	1.93–2.00	F70	1.88–2.01
F120	1.84–1.95	F150	1.83–1.95	F180	1.81–1.93
F36	1.99–2.10	F40	1.96–2.08	F46	1.94–2.05
F80	1.88–1.98	F90	1.86–2.00	F100	1.85–1.97
F220	1.82–1.92

| Applications

Polishing composite floors;

Grinding composite stainless steel;

Providing a matte uniform surface for implants, surgical tools, etc;

Cleaning and finishing sensitive electronic components;

Surface profiling of aluminum or composite materials;

Achieving a smooth, consistent finish on tools and molds.

Used in the surface treatment industry to manufacture flexible polishing wheels;

Used in the production of coated abrasive tools such as sandpaper and emery cloth;

Grinding of heavy castings such as alloy steel and hard steel.


• Polishing composite floors;
• Grinding composite stainless steel;
• Providing a matte uniform surface for implants, surgical tools, etc;
• Cleaning and finishing sensitive electronic components;
• Surface profiling of aluminum or composite materials;
• Achieving a smooth, consistent finish on tools and molds.
• Used in the surface treatment industry to manufacture flexible polishing wheels;
• Used in the production of coated abrasive tools such as sandpaper and emery cloth;
• Grinding of heavy castings such as alloy steel and hard steel.

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