JOINTEC GC - PVC joint conceived to create a "grid" at floor level for cement industrial paving, made through forming and smoothing with the vibrating float. First fit joints at the required height in bays of generally 5 x 5 metres. Proceed then casting concrete and forming it leaning directly on the joint which will work as level line. It will not be necessary to make subsequent saw cuts and filling in the floors, thus completing the job properly at one go. Patented system.