What kind of architectural ï¬nishes are possible with shotcrete? From the most basic natural gun ï¬nish to exotic carved sculptures, from the gray color of regular portland cement concrete to custom-colored and stained mixtures, shotcrete can take on many different types of ï¬nished appearance. Today™s designers are continually challenged to provide quality finishes that ï¬t the surroundings; and in many applications, shotcrete can ï¬ll these needs. Cut and Finish Methods Achievement of an architectural ï¬nish starts with the establishment of the ï¬nal surface plane. Perimeter forms and guide wires are used to