Methyl silica gel
It can be used as waterproofing material .

                                                       Methyl silica gel

Formula: (CH3Si1.5)n

Appearence: solid , wet, polydisperse, product, white color

Mass share of hydrogen chloride:  ≤1.0%

Mass share of non-volatiles:      45%-55%

Mass share of silicone           ≥18.8%