... bag free flowing, non clumping powers like GCC, black carbon, talc, kaolin, silica SKF-159CH micro powder packaging ... meteringSteady performance, easy to operateDouble sealing, which prevents powder from leaking outEnvironment friendly, guaranteed high purity. Materials ... :Activated heavy calcium, heavy calcium, light calcium, talcum powder, superfine silicon dioxide, pyrophyllite, bauxitic clay, dye, ...