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Water glass casting is very similar to investment casting (i.e. lost wax), but is particularly suitable for larger castings and is less expensive to produce. The process provides a surface finish and dimensional accuracy far superior to sand casting, and more complex shapes can be achieved. In addition to steel, alternative materials such as iron and SG iron can also be cast using this method. The difference between lost wax and water glass casting is simply the way the wax is removed from the ceramic mold:Investment casting uses ... more