White corundum F sand is fused from high quality aluminium in high temperature.

Its hardness is higher but toughness lower compared with brown aluminium oxide.

It is characterized by high purity,excellent,self-sharpening,efficient grinding.

Application:

1. Brake linings

2. Surface treatment

3. Bonded and coated abrasives

4. Thermal and plasma spraying

5. Floor and wall laminate materials

6. Lapping and micromolecular spraying

7. Advanced refractory and ceramic materials

It mainly refers to it of the F4-F240 section that has been specially screened. The reason why it becomes this is because the abrasive particle size standards of different countries are different, and the international standard ISO.FEPA.GB standard is marked as "White corundum F sand".

Why do customers prefer to choose it as sandblasting abrasive?

First of all, the products that generally need to use it abrasives for sandblasting must have very high requirements on the surface properties of the product workpieces.

At the same time, there will definitely be requirements for the content of abrasive impurities. 

Taking golf ball sandblasting as an example, the golf ball requires that its surface properties must not be rough.

For abrasives used for sandblasting, the iron content must be lower than a thousand grades, which requires that the alumina content of the abrasive must be better. Therefore, we had to use it. Of course, it lived up to expectations and perfectly completed the sandblasting task of golf balls.

F sand: F4, F5, F6, F7, F8, F10, F12, F14, F16, F20, F22, F24, F30, F36, F40, F46, F54, F60, F70, F80, F90, F100, F120, F150, F180, F220, F230, F240, F280, F320, F360, F400, F500, F600, F800, F1000, F1200

P sand: p240, p280, p320, p360, p400, p500, p600, p800, p1000, p1200, p1500, p2000, p2500

Chemical Composition (Used for abrasive,blasting and grinding)

Differences between BFA and WFA

Colour

BFA:Brown black

WFA:White

Raw Materials

BFA:Bauxite, plus anthracite and iron

WFA:High quality alumina powder

Composition of AL2O3

BFA:≥95%

WFA:≥99%

Production Process

BFA:Calcine

WFA:Refined and crystallized by electric melting

 Properties

BFA:High purity, good crystallization, strong fluidity, low coefficient of linear expansion and corrosion resistance.

WFA:High purity, good self-sharpening, acid and alkali corrosion resistance, high temperature resistance, and stable thermal performance

Comparison

The hardness of WFA is higher than that of BFA

Application

BFA:Grinding wheels, sandblasting, free grinding, resin abrasives, coated abrasives, functional fillers, filter media, and refractory materials

WFA:Ceramic manufacturing, resin-bonded abrasive tools and sandblasting, polishing, grinding, precision casting and advanced refractory materials.

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