Some years ago I saw this stuff advertised at the local DIY store, but now that I need it it has disappeared from all hardware stores! Does someone know about this plastic that comes in pellets and can be formed after a quick bath in hot water? I bet that it would be good enough to make a cheap retaining ring for an old lens. It has this quality over the two components putties that it won't stick too much to the metal and therefore can be unscrewed like a nut once cold. Would someone have a trade name for this product? Thanks!
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