Advantage: Made from high Si glass and a-Al2O3, high density,high hardness, Erosion resistance, low shrinkage, low porosity, smooth surface,non sticking aluminum,long working life,low maintenance cost,it is the best choice for casting platform. Application: Used in aluminum alloy precision casting, well worked in with gas slip casting platform,especially suitable for wagstaff equipment. Usage 1. Select appropriate hot top casting platform, install on the platform and inner crystallizer,keep it clean and intact. 2. preheat 260°C-350°C to use,after installation of hot top casting platform completed.