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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Slightly OT--Glass etching paint?
Awl--
Our beloved NYC homeys, being fair chemical mavens in their own right, have discovered this glass-etching paint they use for their g-d grafitti. The glass in subways and busses and glass busstops, as well as a fair number of storefronts, are totally disfigured by this stuff, which *absolutely cannot be removed*, as it actually etches/melts the glass, w/ a fairly opaque white mess. What is this stuff?? Where do you get it? The good hardware stores I've asked at don't have a clue. I know glass can be etched w/ HF (hydrofluoric) acid, but even that doesn't do this kind of globby disfiguring, afaict. I'd like to experiment a little w/ this stuff, to perhaps see what, if anything, is resistant to it, or perhaps how to remove/reduce some of the damage. This stuff must be costing businesses, the city a g-d *fortune*. Proly has single-handedly increased glass stock prices. Iny idears/clues? -- Mr. P.V.'d formerly Droll Troll |
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