Hello everyone I am in the process of restoring the evaporator box on my 70 GS 455. The one I took off was painted with tons of black which looked like it was put on with a brush!. I got it all off and the box halves are now down to the original brown fiber looking plastic. My question is was the box painted at the factory and if so what color? If it was not painted then I will need to do something about the areas where it was scuffed because the shine is gone from those spots. Is there a clear coating to spray on to cover those scuffed spots? Thanks for the help!!!