Foundry: Bentonite is used as a bonding material in the preparation of molding sand for the production of iron, steel and non-ferrous casting. The unique properties of bentonite yield green sand moulds with good flowability, compactability and thermal stability for the production of high quality castings.

Moulding sand binders

GRADE                                                         HX12-35

GREEN STRENGTH (Kpa2)                         ≥120

HOT-GREEN STRENGTH(Kpa2)                 ≥3.5  

EXPANDING(ml/3g)                                        ≥90

ABSORBED BLUE(g/100g)                           ≥36

GRANULAR(-200mesh%)                              ≥90

MOISTURE(%)                                                 ≤12