Copper melted by soldering iron? Perhaps it was actually dissolving in the solder? On Wed, Aug 7, 2013 at 2:33 AM, Joe McCauley wrote: > That works OK for wires in the region of 0.2mm to say ~0.6mm. Larger > diameters will probably tend to conduct heat away faster I'd speculate (I > would usually use fine sandpaper on those). It is hopeless for the very > small diameter wires as the copper just gets melted. It was while working > with very fine diameter (<38 microns) wire that I first came across > Eccostrip. > > It turns out that the use of methylene chloride in paint strippers has > been banned in the EU since the end of 2010 :(. > > Joe > > ________________________________________ > From: piclist-bounces@mit.edu [piclist-bounces@mit.edu] On Behalf Of Sean > Breheny [shb7@cornell.edu] > Sent: 07 August 2013 06:41 > To: Microcontroller discussion list - Public. > Subject: Re: [EE]: Looking for chemical wire stripper > > If you are only stripping a small portion and you don't mind the wire bei= ng > tinned, a hot soldering iron with a generous blob of solder will strip > magnet wire. The trick is to keep adding solder to the tip of the iron > while it is in contact with the wire. I usually find that placing the iro= n > tip above the wire and allowing the blob of solder to hang down and engul= f > the wire is best. I move it back and forth along the wire, adding solder > and allowing the excess to drip down off the tip. Periodically it is > necessary to wipe the tip to remove any burnt enamel residue. > > > On Tue, Aug 6, 2013 at 11:18 PM, Robert Rolf >wrote: > > > Methylene chloride is the active ingredient in most paint strippers. > > You'll probably find that any paint stripper found in your local > > hardware/building supply store will work for > > stripping enameled wire.. > > > > > > > > On Tue, Aug 6, 2013 at 3:11 PM, KPL wrote: > > > > > Looks like cleaners for polyurethane foam guns also contain methylene > > > chloride. > > > > > > On Tue, Aug 6, 2013 at 9:06 PM, Joe McCauley wrote: > > > > So I dug out an old tin of Nitromors paint stripper & it does conta= in > > > Methylene Chloride (& Methanol). It has deteriorated , but it does > work, > > > though the effect is not as fast as I'd hoped for. Still it beats > > scraping > > > the varnish off with the attendant risk of physical damage to small > > > diameter wires. I'll have to see now if the modern incarnation of the > > > product will work. > > > > > > > > Thanks for all the help, > > > > > > > > Joe > > > > ________________________________________ > > > > From: piclist-bounces@mit.edu [piclist-bounces@mit.edu] On Behalf O= f > > > Joe McCauley [PMCCULEY@tcd.ie] > > > > Sent: 06 August 2013 17:49 > > > > To: Microcontroller discussion list - Public. > > > > Subject: RE: [EE]: Looking for chemical wire stripper > > > > > > > > Used to use a product called Nitromors. I believe it no longer > contains > > > Methylene Chloride. I may have some in an old container in my shed. > I'll > > > test & report back if & when I can find it. It would be at least 10 > years > > > old so may have Methylene Chloride. It was a gel if I recall correctl= y > > > which would be good from a handling perspective. > > > > > > > > I'll also look up MG chemicals as Dwane suggested. > > > > > > > > Joe > > > > ________________________________________ > > > > From: piclist-bounces@mit.edu [piclist-bounces@mit.edu] On Behalf O= f > > > Kerry Wentworth [kwentworth@skunkworksnh.com] > > > > Sent: 06 August 2013 16:33 > > > > To: Microcontroller discussion list - Public. > > > > Subject: Re: [EE]: Looking for chemical wire stripper > > > > > > > > Yes, it contains Methylene Chloride (and methanol). > > > > What do you use in Ireland to get paint off of furniture? Or cars? > > > > > > > > Kerry > > > > > > > > > > > > Joe McCauley wrote: > > > >> Kerry, > > > >> > > > >> That won't be available here most likely (I'm in Ireland). Do you > know > > > what the active ingredient is? > > > >> > > > >> I just tried 66% Nitric Acid. It worked well, but was not instant.= A > > > colleague tells me fuming nitric acid would be better. It would not > > > exactly be easy to handle though..... > > > >> > > > >> I just found my notes relating to that period (1991!) & the produc= t > > was > > > called Eccostrip. It was manufactured by Emerson & Cuming. It is > > apparently > > > no longer made, but one of the active ingredients was Methylene > Chloride. > > > >> > > > >> Thanks, > > > >> > > > >> Joe > > > >> > > > >> -----Original Message----- > > > >> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On > > > Behalf Of Kerry Wentworth > > > >> Sent: 06 August 2013 15:18 > > > >> To: Microcontroller discussion list - Public. > > > >> Subject: Re: [EE]: Looking for chemical wire stripper > > > >> > > > >> I have tried acetone and denatured alcohol without success. After > > > seeing your email, I tried some Klean-Strip Low Odor Aircraft Remover > and > > > it works instantly. Available at auto parts stores. > > > >> > > > >> I suspect any paint remover would work. > > > >> > > > >> Kerry > > > >> > > > >> > > > >> > > > >> Joe McCauley wrote: > > > >> > > > >>> Many years ago while working in a lab in France, I used a chemica= l > > > stripper to remove the varnish from wire (similar wire to that found = in > > > transformers). This would dissolve off the varnish cleanly and > > effortlessly > > > & I used it on wire diameters down to 0.038 mmm. It smelled absolutel= y > > > horrible (corrosive), but only stripped off the varnish leaving the > > copper > > > perfect. > > > >>> > > > >>> Does anyone know of a substance that will perform similarly? > > > >>> > > > >>> Thanks, > > > >>> > > > >>> Joe > > > >>> > > > >>> > > > >>> > > > >> > > > >> -- > > > >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > > View/change your membership options at > > > http://mailman.mit.edu/mailman/listinfo/piclist > > > >> > > > >> > > > >> > > > >> > > > > > > > > -- > > > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > > > View/change your membership options at > > > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > > > > > > > > > > > > -- > > > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > > > View/change your membership options at > > > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > > > > > > > > > > > > -- > > > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > > > View/change your membership options at > > > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > > > > > > > > -- > > > KPL > > > > > > -- > > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > > View/change your membership options at > > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > > > > -- > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .