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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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What plastic is the Nikon Coolpix camera body made up of (why did glue melt it?)
On Mon, 15 Oct 2007 14:21:42 GMT, Jeanette Guire
wrote: On Mon, 15 Oct 2007 12:06:46 -0000, Lloyd E. Sponenburgh wrote: The CA "fogging" is because CA cements sublime at room temperatures, and recondense on adjacent surfaces -- where they ultimately cure in the form of a white film. That must be what happened. The entire inside of the battery compartment turned a milky white and changed from a smooth surface to a slightly rougher surface. Even the yellow plastic sticker showing which way to put the batteries seemed to get fogged up. Wierd. I thank you for your help because I have only one camera to fix but there are tens of thousands of others out there who will benefit from choosing the RIGHT glue to fix the engineering flaw in the Nikon Coolpix series of cameras. Most likely, the plastic is a styrene/polybutadiene copolymer, which is sensitive to acetone, xylene, toluene, naptha, and PVC plasticizers This is good to know for the next person who does this repair http://usera.imagecave.com/coolpixfixer/ if you used a clear 5-minute epoxy, try using a pigmented slow-cure type that cures hard, and try an entirely different brand, as well. I used the Locktite 5-minute quick-set two ingredient epoxy as shown at http://usera.imagecave.com/coolpixfi..._latch_011.gif For the record, the next person who tries the Nikon Coolpix camera repair should use pigmented 30-minute expoxy. Thanks for helping all of us! PowerPoxy makes a plastic bonder. It comes in a double syringe, like 5-minute epoxy. It is said to work on all hard and soft plastics. It doesn't say that it doesn't work on polyethylene and polypropylene, but I'd be surprised if it does. Color is kind of an ugly opaque amber. |
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