Matrix D-Max GW ASX

New generation anode stub coating for primary aluminium smelters

D-Max GW ASX is a water-based semi colloidal graphite dispersion specially formulated for use in primary aluminium smelting. It is formulated to improve the efficiency resulting in a lower voltage drop and lower carbon footprint. D-Max GW ASX contributes to increased safety of the rodding process in prebake carbon anode production.

D-Max GW ASX is supplied ready-for-use. This eliminates on-site dilution errors and thus ensures the best performance. It is dip applied to anode stubs in the rodding shop before they are fixed by cast iron to the anode blocks. D-Max GW ASX is then dried by gas burners or induction heaters to give a coating which extends stub life and withstands the smelting process to ensure that the cast iron Timble can be stripped away easily, and the stubs re-used.

Benefits & Advantages

• Better Cell efficiency (reported savings up to 8 mV per cell lower voltage drop compared to competitive products)
• Very stable dispersion resulting in
  • No settling down of the graphite in the dipping tank (no agitation needed)
  • Lower Energy Consumption (no agitation)
  • No manual cleaning of lumps of Graphite
  • Decreased consumption and less waste
• Smokeless
• Non-flammable
• Superb release properties in the Cast Iron Timble press resulting in
  • Very low number of stickers in the Cast Iron Timble press (reported 10 times less compared to competitive coatings)
  • Superb release properties in the Cast Iron Timble press resulting in substantial lower energy consumption
  • Very low deforming of the anode stubs resulting in lower operator labor
• Phosphate free
• Contains anti-corrosion properties