Foundry Bentonite

We are offeirng foundry bentonite.
Bentonite in foundry is mainly used as molding sand adhesives in greensand mold, skin dry mold, dry mold and high pressure molding of cast iron and cast steel. With high content of montomorillonite, better green compression strength and hot wet tensile strength, high strength expanding and better thermal stability. using this product can improve the reusability of molding sand, reduce the dosage of bentonite and water content of sand system, it enhances the strength and flexibility of molding sand, improve air permeability, apparently improve the quality of cast, reduce waste by solving problems about the casting sand, scarring, block, porosity, sand washing and sand subsidence, thereby reducing the casting production costs, storage and transport costs.
ph value 9-10.5
gel formation index 85-95
gelling time 28 sec to instant
fsv 30
green compression strength 850
green sheer strength 130
mb value 415 to 430
liquid limit 800 to 850 min
passing 100 mesh 99 min
passing 200 mesh 90 to 95 min
above mentioned parameters are indicative. We offer full entire range of foundry grade bentonite powder.
interested clients can ask for specific requirement also.