Suitable For
1.Grinding and finishing of welds
2.Deburring, rust removal and snagging
3.Suitable for most ferrous & non-ferrous materials
4.Excellent for surface finishing

Abrasive Grains of polishing flap disc
1.A/O  - Aluminium oxide coated, for alloy steel and low-alloy steel
2.Z/A  - Zirconia Alumina coated, for high-alloy, stainless, and heat-treated steel; high-tensile, non ferrous metals 
3.S/C - Silicon Carbidecoated, for marble, stone, glass, and non ferrous metals

Type for polishing flap disc
1.T-27 – Flat shape, Used for grinding flat surfaces. Most efficient when used at a 0-15 degree angle
2.T-29 –Conical or Tapered shape, most used for contour and edge grinding. Best at 15 - 25 degrees angle.

Aluminium oxide:

 

 

Calcined Aluminium oxide: 

 

 

Zirconium oxide:

 

 

Silicon carbide:

 

 

VSM Ceramic: