I´m designing a museum in Portugal, wich is already under construction, and I want to know how i can get a white, flat, uniform, resistent to light and shoes, concret floor - for a white room in the Museum ? It must have no joints and must be realy white. Is it possible to get this kind of product. thank you. The room has 70 square metters. The idea is to have a complete white room - floor, walls and ceiling.