Properties and applications: SIPERNAT represents a specific product range of precipitated silica, aluminum and calcium silicates. SIPERNAT 35 is a finely ground, slightly alkaline silica with moderate absorption capacity. It is particularly well suited for insitu hydrophobized processes. Due to an optimum pH value of about 8, it facilitates, for instance, the hydrophobization process of defoamers.Information provided by Evonik |