Light-curing, blue-transparent blocking-out and modelling putty with optimum flow properties. For fabrication of space holders for bleaching splints and medical trays as well as for sealing and blocking set-up models. Burns without leaving any residue, can therefore also be used in prosthetics for the fabrication of fixed and removable dentures. Telescopic models are stable and can be withdrawn without tension. Curing in the wavelength range of 380-470 nm.