"screen mold"

Andreas Holz wrote: It's well-known; a lot of our HP equipment suffers from it too. I don't think anyone's tracked down the exact cause yet (Sellam, didn't you think you could get a sample of the stuff analysed if someone sent you some?) Whatever the stuff is, it attacks the sealant between the CRT and CRT faceplate. I've successfully removed the decaying sealant on an HP 250 display using a bit of resistance wire and a scrap PC PSU, then resealed (edges of the faceplate only, not the visible portion of the CRT) using translucent waterproof sealant. The CRT itself and faceplate were both unaffected by the decay; it only affects the sealant between them. The fact that I only resealed around the edges (it's too difficult to apply sealant to the whole screen with home tools without getting air bubbles in) means that there's a *little* less protection to the user (the faceplate's pretty thin anyway) in the event of a CRT explosion, but I figure this isn't a likely occurrance in the first place - and having a usable screen's far better than a useless one! I've seen the same problem on Digico displays, but not much else - it seems to mainly get HP screens for some reason. Anyway, good news is that it an be worked around :) In the case of our HP 250 display, there was a lot of moisture trapped between faceplate and CRT, so you're probably right in not powering on until you've sorted it out, just in case the damp leaks and gets somewhere it's not supposed to. cheers Jules