... /silica Precipitated powder Molecular formula:SiO2nH2O we have rubber,tyre,sole,medicine,feed,food,medicine WHITE SILICAChemical name: ... properties, it is the best transparent reinforcement additive in rubber-based blends. It can greatly improve the aging resistance, ... resilience and compressive deformation resistance of silicon rubber. Used for [tyres]: If used in thread, it ...