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  • Resin in a box

    posted by dansdata on 10/03/2008

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week


    Cheap as chips. Looks like pretty high-grade pine resin ("rosin").


    The resin was poured molten into the boxes, so it's in there tight. If you want to use it as solder flux, you'll need to break it up. If you want to use it on a bow, you'll have to cut or tear the boxes.


    You get two little boxes with resin poured into them. Total net weight about 40 grams (1.4 ounces), I'd say. It melts at not much more than the boiling point of water, as it should.


    In the olden days, this stuff was used for all sorts of things. These little boxes are presumably meant to be string-instrument bow resin, but you can indeed make solder flux out of it (resin behaves as an acid when melted, but is inert when solid, so you don't have to scrub it off the solder afterwards; that's why normal electronics solder has a resin core). You can also use it for various other purposes - scenting candles, old-fashioned glue or varnish, making DIY chewing gum...

    There's probably not enough for you to use it as hand-friction powder for athletics, though :-).

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