Sodium Silicate Liquid Alkaline With Specific Gravity 139.0 To 141.0 Degrees T Waddell At 15.5/15.5 Degree/C Type -I To Is:381/1972 Packing: 50 Kg Jar. Specn: Note: Mfg. & Ex Piry Date Must Be Indicated On Materil/Packing.Supply Should Be Made Within One Month From Mfg. Date. Standered Packing Must Be Required. [ Warranty Period: 30 Months After Th E Date Of Delivery ] ]