Sia 7940 Siaair 150mm Discs

7940 Siaair – Whether it’s scuffing, fine sanding or preparation for polishing the improved technology of 7940 siaair is the key to a perfect finish in damp and dry sanding applications.

Grit type

  • Aluminium Oxide
  • Available in 240, 360, 500, 600, 800, 1000, 1500, 2000, 3000 & 4000 grits


  • High stock removal rates and excellent finish
  • Low clogging in damp and dry sanding applications
  • Highly adaptable to contours, curves and profiles
  • Pressure-equalising foam gives perfect surface finish
  • Waterproof and washable
  • Resistant to silicon remover


  • Matt finishing of conventional old and new varnishes as well as composite materials
  • Fine sanding primer filler in hard-to-reach areas
  • Preparation for polishing on high-gloss surfaces

Next day delivery when ordered before 2pm