Special Lac for 3D Printers that have a 'HeatedBed' or "heated bed." Its function is to hold the first layer of plastic that does not move at the start of printing, avoiding unwanted start faults in the process. With a light vaporized on a smooth surface enough so that the first plastic layer is fully fixed to the base. The properties of 3DLACwhile the base is hot the extruded plastic of the head adheres strongly. On cooling, the printed piece is released gently and undamaged.