Water glass casting (sodium silicate casting) is a technology of Russian origin. This technology is mostly used for steel and stainless steel components. By using this technique more complex designs can be made compared to the sand casting technique. Pricewise it is for big size products more interesting, compared to silica sol castings, however less precise in dimensions.

Dec 17, 2018

Water glass cast components are mainly used where heavier/stronger and yet more complex shapes are required.

Water glass (sodium silicate) is used to cure the ceramic layers. This substance is added to the slurry (see the next page). The wax tree is then immersed (in the slurry). The slurry continues to adhere to the wax, after which it is strewed with ceramics. It is then placed in a bath with a water chloride solution.