Low Specific Gravity Injection Wax. Designed for platinum, gold, silver as well as industrial and dental alloys, Freeman Flakes injection wax has set the world standard in precision casting for years. With the lowest ash content available (0.003%), Freeman flakes guarantees the cleanest burnout possible. It's available in 7 application-specific colors. Freeman Turquoise Blue - All Purpose, Best Detail. Highest Flow and Lowest Shrinkage