GC LiSi PressVest is a phosphate bonded investment for press ceramic techniques offering you an easier, faster and safer process. Hydrofluoric acid treatment and alumina blasting are no longer required for the removal of the reaction layer. GC LiSi PressVest provides a stable handling under various temperature conditions and is so robust it provides a strong investment ring so you can effectively use wider volume, but also easy to divest. GC LiSi PressVest provides a comfortable and secure investing with a high flow and a longer working time.