Rethreading a CRT Questions

[ppppenguin]

I don't have much direct experience of gluing the bases back on to tubes but the received wisdom here in the UK is to avoid superglue (cyanoacylate). Apparently it can cause the glass to crack. The usual suggestion here is Araldite (2 part epoxy resin).

[MadMan]

Originally Posted by ppppenguin

I don't have much direct experience of gluing the bases back on to tubes but the received wisdom here in the UK is to avoid superglue (cyanoacylate). Apparently it can cause the glass to crack. The usual suggestion here is Araldite (2 part epoxy resin).

I wonder if superglue cracks the glass because it gets hot sometimes. Most epoxy glues are also exothermic, but I don't think to the point of thermally shocking the glass. Then again I did use a Permatex epoxy glue once that literally burned me while using it.

[ppppenguin]

I think the problem with superglue is that its coffeicient of expansion is very different to glass so when the tube gets hot it causes stress. Araldite is relativel soft when fully cured so allows for some movement.