Fujirock EP Classic Line is a model plaster, class IV. The plaster is quick and easy to use. It has a mixing time of 1 minute and the model can be separated from the impression spoon after 30 to 40 minutes, depending on the impression material used. The gypsum is thixotropic with low expansion, <0.09% after 2 hours, and a compressive strength of 53MPa after 1 hour. Mixing ratio powder / liquid: 100g / 20ml