Extreme screen "rot" on a TEC terminal

>>>> "Bob" == Bob Rosenbloom <bobalan at sbcglobal.net> writes:

>> middle. It's referred to as "cataracts". I don't know if it's >> mold, but it basically results in the breakdown of the PVA >> bonding compound that holds the safety glass to the face of the >> tube. To remove it, at least on the TV tubes, you take the the >> tube out of the set, put it neck down in a large bucket/barrel so >> that it's supported, and use a heat gun to heat up the >> screen. After a while, the PVA will soften, and the faceplate can >> be gently separated from the tube. Don't pry it up - try to >> gently induce air bubbles under it with wooden shims and >> heat. Once the bond breaks over most of the tube, the glass >> should come off without breaking. Then you clean out all the PVA >> gunk, and reattach the safety glass with packing tape along the >> edges.