little bit in the current edition of Spaceport news about the RSMEshttp://www.nasa.gov/centers/kennedy/pdf/616043main_jan13-2012.pdf
“Historically, the Smithsonian’s National Air and Space Museum is known for displaying authentically flown flight hardware,” Hausman said. “The museum requested that the engines look as authentic as pos- sible after flight.”
Guard-Lee Inc., of Apopka, Fla., created the Explorer space shuttle replica that was on display at the Kennedy Space Center Visitor Complex. According to Hausman,
the company specializes in creating authentic-looking space vehicles and hardware.
Guard-Lee replica specialists were hired by the Smithsonian to come
to Kennedy to sand and paint the RSMEs to simulate what a flown nozzle looked like after a shuttle mission.
“It required an artistic approach to achieve the look of post-flight engines,” said Guard-Lee president and owner Tom Wilkes.
Wilkes said four technicians took about a week to repaint some areas of the RSMEs and lightly abraded other areas so the nozzles looked as if they had flown in space.