> I recently restored several VT100 that were extremely yellowed as well > as filthy dirty. > > I put the plastics in my bathtub and sprayed them heavily with "Krud > Kutter", intending only to remove the dirt. To my surprise, much of > the yellowing came off too. It didn't return them to their pristine > original color but significantly reduced the yellowing as a tea colored > runoff pooled in the bottom of the tub.
Chris, Do you have pictures? I wonder if one of the main ingredients maybe H2O2. Also how long ago did you do this? There may not have been enough time for a return to the yellow color. -Ali