mold and when you remove the wax you get a premium finish.
2. Complex near-net geometry: The wax pattern inside the ceramic is almost the final shape, and the properties of liquid ceramics can round out the wax pattern and any details thereof. When the wax is removed, the shape remains. So pour the molten metal into the casing and wait for it to cool. You will get the final geometry.http://www.dk-metals.com/casting/investment-casting/