MITGEL BASIC FOUNDRY GRADE

The third largest use for bentonite is in foundry practice where the minerals is employed bending agent and conditioner in moulding sand used for casting ferrous and non ferrous metals. Bentonite is stated to be particularly useful as a bond with the high silica used in steel foundries and as an ingredient in core washes, in which it serves to keep the carbonaceous ingredient in suspension.

  • General and rheological Specification
  • Color
  • Moisture
  • Swelling Capacity 2gm/100ml
  • Base Exchange Capacity
  • Gelling Time in minutes of Bentonite Slurry
  • Gel Formation Index
  • pH at 5 %
  • Liquid Limit
  • Sieve Analysis % passing thru
  • 100 mesh
  • 200 mesh
  • Green Compression Strength
  • Wet Tensile Strength
  • Loose Bulk Density
  • Montmorillonite
  • Result
  • Pale yellow/Light green
  • 12 – 15 %
  • 15 ml
  • 50meq
  • N.A.
  • 40
  • 8
  • 250

  • 99
  • 85
  • 8 P. S . I
  • 0.25 N/CM
  • 0.85 % G/CM
  • 70% Min
Composition :
  • SiO
  • Al2O3
  • Fe2O3
  • CaO
  • MgO
  • K2O
  • Na2O
  • Loss On Ignition
  • 58%
  • 18 %
  • 9%
  • 1.5%
  • 1%
  • 1.2%
  • 2.3%
  • 9%