Sodium silicate is available in many different grades that mainly varry based on the level of alkalinity or the ratio of Silica.  We carry 3 major grades of Sodium Silicate in solid (powder or granular) form and one grade in liquid form as detailed in the table below.

SKUShapeAlkalinitySiO2/ Na2OSilicaSolubility in water
SSGPowder/ GranularLow3.22HighModerate
>95%, requires heat
SSGDPowder/ GranularMedium2MediumHigh
SMSPowder/ GranularHigh1LowVery high