McIntosh bubbles

Up to know, the only way I know is to replace the glass with a new one. But I would be interested in another way.

Hair dryer??

I have seen a Mac Amp that was repaired around the headphone jack by somehow applying black paint to the back side of the face plate. I don't know for sure how it was done but my guess is that you would have to remove the faceplate then my apply black paint from the rear side. The repair was barely noticeable unless if you looked real close, but it looked a lot better that the bubble. Perhaps some knows more about this technique, since I own a few Mac pieces I would like to know for sure how it was done.

I know this reply is a couple of years late. Heck, when this was originally posted I thought computers were the only thing that the name McIntosh was known for. But for anyone who happens to read this now, I can say that if your going to use black paint behind the glass, make sure you use "Testors" model paint. It seems to be the closest shade of black to what  McIntosh uses.