siasphere – Hemisphere for permanently consistent sanding results
The surface of structured abrasives has a microscopically small hemisphere consisting of many grit layers lying on top of each other. As a result of this unique surface structure, new sharp grit is released with each wear to deliver a permanently consistent result.
Conventional abrasives
- Individual grains
- Electrostatic / mechanical coating
- Grit wear with each use
Agglomerated abrasives
- Multiple individual grains connected with a bonding bridge
- Coating of multiple grit layers
- No structured shape
- Mutual self-sharpening
- Increased lifetime
Structured abrasives
- Many grains glued to form a hemisphere
- Defined spherical structure
- Defined contact point with the workpiece
- New grit with each wear
- Consistent surface quality over the entire lifetime of the product
Consistent surface quality
Unused
Before 1st use
Light wear
After 1st use
Medium wear
After many uses
Heavy wear
Before end of lifetime
Performance comparison
- yellow: siasphere (high contact pressure)
- red: siasphere (low contact pressure)
- green: Conventional abrasives (high contact pressure)
- blue: Conventional abrasives (low contact pressure)