Alumina Zirconia Blast Media

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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ZA25

ZA40

| Features

Uniform spherical shape for consistent pressure distribution.

Gentle surface treatment for sensitive materials.

Lead-free, non-toxic and recyclable.

Chemically stable, corrosion-resistant.

Provides a smooth polished surface with a satin or matte effect.

Generates less dust than other grinding materials.

Suitable for wet grinding of low-viscosity materials.


• Uniform spherical shape for consistent pressure distribution.
• Gentle surface treatment for sensitive materials.
• Lead-free, non-toxic and recyclable.
• Chemically stable, corrosion-resistant.
• Provides a smooth polished surface with a satin or matte effect.
• Generates less dust than other grinding materials.
• Suitable for wet grinding of low-viscosity materials.

ZA25 Alumina Zirconia Blast Media
Typical values	ZrO₂	Al₂O₃	Others
%	24	75	<1
Item	ZA25
Specific Gravity	4.30g/cm³
Bulk density (LPD)	1.85–2.30g/cm³
Vicker hardness (100g Load)	20 GPa
Melting Point	1940°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)

ZA25 Alumina Zirconia Blast Media
Typical values	ZrO₂	Al₂O₃	Others
%	24	75	<1
Item	ZA25
Specific Gravity	4.30g/cm³
Bulk density (LPD)	1.85–2.30g/cm³
Vicker hardness (100g Load)	20 GPa
Melting Point	1940°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	μm	F Sand	μm	F Sand	μm
F22	885	F24	745	F30	625
F54	310	F60	260	F70	218
F120	109	F150	82	F180	69
F36	525	F40	438	F46	370
F80	185	F90	154	F100	129
F220	58

F Sand	μm	F Sand	μm	F Sand	μm
F22	885	F24	745	F30	625
F54	310	F60	260	F70	218
F120	109	F150	82	F180	69
F36	525	F40	438	F46	370
F80	185	F90	154	F100	129
F220	58

| Applications

Suitable for surface treatment of marble and super-hard steel;

Remove thick contaminants such as rust, scale, and old coatings;

Manufacture high-grade refractory materials and wear-resistant products;

Grind and cut tough materials;

Cleaning hard surfaces and creating rough surface profiles.


• Suitable for surface treatment of marble and super-hard steel;
• Remove thick contaminants such as rust, scale, and old coatings;
• Manufacture high-grade refractory materials and wear-resistant products;
• Grind and cut tough materials;
• Cleaning hard surfaces and creating rough surface profiles.

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