According to quality, you can find our sands in gray cast iron, tempered iron, cast steel, spherical iron and metallic iron.
For the foundry industry we offer our specially sorted sands from Kerkosand and Provodín (CZ)as well from other plants of Quarzwerke Group.
Rounded grains and a high content of silica are characteristic of foundry sands, used as a basis for the production of moulds with bonding agents such as bentonit, Cold Box, Hot Box, furan resins and water glass.
Quartz : Quartz sand, MILLISIL® - Quartz powder
Fused silica: AMOSIL®
MICA: MICA, ASPOLIT