Open coating – works up to 20% faster

The new generation of coating technology uses an open coating system and provides improved positioning of the abrasive grits and optimised stearate composition (zinc-free). Advantage: works over 20% faster with minimal clogging and the longest lifetime.

Conventional: Closed coating

The conventional electrostatic grit coating method is closed coating.


New: open coating

Open coating from sia Abrasives has optimised grit positioning to provide an improved removal rate with minimal clogging.

  • Minimal clogging due to open coating technology and optimised stearate composition (zinc-free)
  • Maximum removal rate
  • Longest lifetime
  • Lower abrasive consumption
  • Higher efficiency
  • Lower costs

Performance comparison

  • 1950 siaspeed, P240, 150 mm diameter, 15-hole
  • Orbital sanding: 5 mm stroke, soft backing pad. Surface: filler, Unipol polyester filler

  • Robotised machine under laboratory conditions