Synroc is a ceramic that incorporates the radioactive waste into its crystal structure. Synroc is composed of three titanate minerals. These are combined into a slurry to which is added a portion of liquid nuclear waste. The mixture is dried and calcined at 750 degrees to produce a powder. The powder is then compressed by Hot Isostatic Pressing (HIP) where it is compressed with-in a bellows-like stainless steel container at temperatures of 1150 - 1200 degrees.