NO. You can take out 1/4 or 1/3 of your system sand and replace it with pre-mulled Green Diamond, which will accelerate the conversion. Or, you can just stop adding your current system sand source and transition into our synthetic olivine. If you switch from natural Olivine, you will not see any difference in your system sand until you reach 50% Green Diamond sand. At that point, you should start to see an increase in permeability and cast performance. You can also start reducing the makeup sand as the insulating properties of Green Diamond sand reduce clay burnout so there is less contamination to dilute with new sand.

We offer AFS GFN identifiers for each of our foundry products. We prefer that you send us a sand sample to be tested so we can accurately recommend an appropriate size for your facility. In general, our AFS 100 is used by shops that pour only aluminum and have automatic molding machines. AFS 115 is typically used by shops that have squeezers, etc. and perhaps pour some brass. AFS 130 is used for belt buckles and plaques. AFS 145 is the next step finer.

Delivered price of Green Diamond synthetic olivine is very dependent on freight and packaging. Even if the delivered cost is more, you will see savings in reduced makeup sand, lower pouring temperatures, and better finish, which should negate any higher price. Also, since Green Diamond sand is 10-20% lighter in bulk density, there would be savings in disposal if you pay by the ton and there are more cubic feet of Green Diamond sand per ton than Olivine or Silica.

YES. Our studies have shown that the makeup sand, for dry reclaimed Sodium Silicate no-bake, was reduced from 35% with Olivine to 15% with Green Diamond synthetic olivine. Green Diamond sand reclaims faster, easier, and is cleaner than the natural Olivine, and doesn’t break down as easily.

There is no need to change your clay. You can use the same mix as you were using with natural olivine. If using Green Diamond as a facing sand, you might want to adjust the clays up a little because of the bulk density difference. There is more surface area per pound of Green Diamond synthetic olivine compared to natural Olivine.

Diamond foundry sand is no free silica, reducing health risks associated with crystalline silica exposure. It offers excellent thermal stability, permeability, and mold strength, making it ideal for high-quality casting applications.

It is widely used for ductile iron, gray iron and non-ferrous metal casting. However, specific applications may require different grain sizes, so it’s best to consult with our team to determine the right fit for your needs.