Zhengzhou Haixu Abrasives Co., Ltd.

WFA Abrasive blasting media is made of 99% aluminum oxide powder as raw material, which is refined and crystallized by electric melting (thus white corundum is also called fused alumina and white fused alumina). The white corundum sand produced by our factory has high purity, low impurities, low sodium content, uniform particles and high whiteness.

Typical chemical analysis of WFA Abrasive blasting media:
AL2O3 99.59%
Fe2O3 0.02%
Na2O 0.24%
K2O 0.02%
SiO2 0.01%
CaO 0.02%
MgO 0.01%
L.I.O. 0.09%


Characteristics of white fused corundum:
1. Because the white fused alumina has good self-sharpening, strong toughness, strong grinding ability, hardness higher than brown corundum, and low heat generation, it can not only be used as a raw material for abrasive tools such as cutting discs and grinding wheels.
2. White fused corundum can also be directly used in grinding and polishing, surface treatment, sandblasting and rust removal, and can be used in dry and wet sandblasting, surface polishing and polishing, and surface treatment before spraying.
3. Fused alumina sand has strong wear resistance, so it is suitable as an additive material for wear-resistant products.
4. White fused corundum has high refractory temperature, acid and alkali corrosion resistance, and good thermal performance. It can be used as high temperature resistant materials such as casting surface sand, thermally conductive ceramics, and high temperature resistant glue. It is widely used in casting, steel refractory, chemical refractory, 95 batteries, decorative porcelain and other special ceramics and porcelain for daily life, as well as high-tech industries such as semiconductors and electronics.

3. Typical physical properties of WFA Abrasive blasting media:

Hardness: Mohs:9.0
Maximum service temperature: 1900 centigrade
Melting Point: 2250 centigrade
Specific Gravity: 3.95g/cm3
Volume density 3.6g/cm3
Bulk density(LPD): 1.55-1.95 g/cm3
Color: White
Particle shape: Angular

4. Product Feature of WFA Abrasive blasting media:
a. High Whiteness,WFA blasting media don’t affect the color of substrate.
b. High hardness with good self-sharpening ability.
c. Low grinding heat in blasting process. There is no metal and other residues on surface.
d. Even particle distribution not blocking blasting nozzle.
e. Low Na2O content and high Al2O3 purity.


5.Applications of WFA Abrasive blasting media:

1. Metal sandblasting surface treatment:
Removing the oxide layer of metal, stainless steel, aluminum alloy, tungsten molybdenum, copper products and other materials. Abrasive sandblasting to remove rust. White aluminum oxide grain has strong grinding ability and high efficiency. It can be recycled and will not leave residues on the surface of the workpiece. White aluminum oxide grain does not contain iron, sulfur, chlorine and other elements. It can be used in dentistry, food, medical equipment, aerospace and other fields :
i. -Surface treatment before spraying for spraying, painting, supersonic thermal spraying, etc., to increase the unevenness of the surface of the material and enhance the holding power of the sprayed material. B-Prepare the surface treatment before painting the back panels of mobile phones and laptops.
ii.-Surface treatment before metal spray welding and titanium plating, such as sandblasting on the surface before brazing of super-hard grinding wheel and cemented carbide.


2. Surface treatment of glass and non-metallic materials:
i. Colored glass, glass products, ceramic products, bamboo chips, wood products, composite non-metallic materials and other materials such as sandblasting, matting, polishing, matte treatment, etc. Rubber materials such as printing rubber rollers, rubber molds, PU materials, acrylic sheets, plastics and other materials are surface-etched.

3. Semiconductor industry: White aluminum oxide used for surface treatment of aluminum alloy semiconductor components, surface treatment and sandblasting before vacuum sputtering; removal of impurities on the back of wafers.

4. Mold processing industry: White aluminum oxide blasting media for surface treatment of metal molds, forged steel molds, forged aluminum molds, mold steel, carbon steel, and mold processing industries such as matte surface treatment after mold biting. For example, wire cutting molds, glass molds, tire molds, conductive rubber molds, shoe molds, bakelite molds, electroplating molds, button molds, plastic product molds and other molds all use alumina sand.

5.Skin cleaning:Microdermabrasion Crystals white aluminum oxide could improve scars,blackheads,pore size. It makes skin smooth and clean without any contaminant.




6.Product Specification of WFA Abrasive blasting media:

Grit 1 2 3 3 and 4 5 Q5max,%
W1,um Q1,% W2,um Q2max,% W3,um Q3min,% W4,um Q3+Q4min,% W5,um
F8 4000 0 2800 20 2360 45 2000 70 1700 3
F10 3350 0 2360 20 2000 45 1700 70 1400 3
F12 2800 0 2000 20 1700 45 1400 70 1180 3
F14 2360 0 1700 20 1400 45 1180 70 1000 3
F16 2000 0 1400 20 1180 45 1000 70 850 3
F20 1700 0 1180 20 1000 45 850 65 710 3
F24 1180 0 850 25 710 45 600 65 500 3
F30 1000 0 710 25 600 45 500 65 425 3
F36 850 0 600 25 500 45 425 65 355 3
F40 710 0 500 30 425 40 355 65 300 3
F46 600 0 425 30 355 40 300 65 250 3
F54 500 0 355 30 300 40 250 65 212 3
F60 425 0 300 30 250 40 212 65 180 3
F70 355 0 250 25 212 40 180 65 150 3
F80 300 0 212 25 180 40 150 65 125 3
F90 250 0 180 20 150 40 125 65 106 3
F100 212 0 150 20 125 40 106 65 90 3
F120 180 0 125 20 106 40 90 65 75 3
F150 150 0 106 15 90 40 75 65 63 3
F180 125 0 90 15 75 * 63 40 53 *
F220 106 0 75 15 63 * 53 40 45 *

7.Packing of WFA Abrasive blasting media:
a. 25KGS/PVC Bag
b. 1Metric Ton/Jumbo Bag
c. 25KGS/PVC Bag,40Bags/Jumbo Bag
d. 1 Metric Ton/Jumbo Bag/Pallet
e. Other customized package are available