Check the listing for details. Sodium Silicate Solution, 41% Concentration, 4oz, Reagent Grade, SHIPS SAME DAY. Condition: New. Listed at 10.99 USD. 15.00 Sodium Silicate Solution 41% Na2O(SiO2)(H2O) Weight 4 Ounces Strength 41% Sodium Silicate Chemical Formula Na2O(SiO2)(H2O) Grade Reagent Grade Consistency Viscous Liquid You are purchasing 4 Ounces of Sodium Silicate Solution. The Sodium Silicate is dissolved in distilled water in a ratio of 41% Sodium Silicate to 59% water. The item ships in a 4 Fluid Ounce Polypropylene bottle. Sodium Silicate Solution; also known as Waterglass; has hundreds of uses. For more information, go to: http://en.wikipedia.org/wiki/Sodium_silicate FREE EXPEDITED SHIPPING We ship THREE TIMES A DAY, 7-Days a week. Your item is guaranteed to be in the mail the SAME DAY you place your order. Transit time from California is 2-4 days throughout the USA. Our bottles are made of sturdy polypropylene. We shrink-wrap the screw tops and seal the bottles in plastic to ensure a spill-free journey.