Gold Star Omega+ has been formulated to deal with the most demanding situations, producing excellent results even at the most extreme temperatures. Omega+ has optimised thermal expansions, permeability and particle size distribution to enable it to produce the highest quality castings and reproduction of Master Models. Omega+ has the highest content of un-mineralised Cristobalite in the GSP range. A grade of Cristobalite is specifically manufactured for Omega+ at our sister company's calcining and grinding facility, which ensures that the exact particle size grading is required is achieved. Omega+ is suitable for all Yellow and White Golds including High Percentage Palladium White Gold.