Microsilica powder (sio2 powder, min 92%) is used in refractory materials to fill small pores, increasing the consistency and fire resistance of the material, 25kgs / bag. new 100%
Silicon oxide powder (100% new) ._ microsilica (1000kg / bag) _cv: 493 / k�4-th dated december 27, 2018 and ptpl: 4802 / tb-tchq dated april 29, 2014.�cas code: 69012-64-2 is not included in decree 113.