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<p>[QUOTE=&quot;digitect, post: 1645606, member: 38157&quot;]I am using Klean Strip brand Acetone and Xylol from my local big box home improvement center. (Both are available from the orange-white one and the blue-grey one!)</p><p><br /></p><p>The MSDS sheets of the first indicates 100% Acetone. The second indicates 60-100% Xylene and 10-30% Ethylbenzene. Both are highly flammable and should not be used indoors or at any outdoor location near electricity. (The layman&#039;s way to say non-explosion proof electrical systems and gear.) Around the web, many numismatists contest the purity and appropriateness of hardware grade chemicals. I myself would like to use better. But...</p><p><br /></p><p>Reagent grade chemicals (highly pure) are can be very difficult to legally obtain without being a corporation involved in scientific or industrial processes. I work near one of the country&#039;s larger research parks and still there are literally no resources of reagent grade Acetone and Xylene for off the street consumers. Mail order may be simpler, but one source I tried required a corporate account. Prices for reagent grades are many times higher than those of a hardware store, too.</p><p><br /></p><p>Ideally, we&#039;d all be using the purest chemicals in an exhausted&nbsp; laboratory fume hood. But I&#039;m a long way from that kind of set up. (I know several of the chemist on the coin forums actually do have this kind of option.) I&#039;m curious, has anyone else discovered retail sources for these chemicals?[/QUOTE]</p><p><br /></p>

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