Well all the 70-1 Cuda grilles and lower valance inserts finished in silver and or Argent are indeed lacquer, as that what I used to "wash" the original finish off to plastic weld/repair/and or repaint grilles for customers, if your going to use lacquer to "wash" the old finish off use plenty of clean WHITE rags only, and give the piece(s) time to breathe/dry out between wipedowns, as the lacquer will start to soften the plastic if exposed to too long a time or repeated washes/applications

Mike