ethanol/isopropyl
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190 proof ethanol (grain alcohol) does cut rosin flux very well and is available at the local liquor store...It is EXPENSIVE, about $23 for 750 ml...99% Isopropyl alcohol is about $5 a pint at several Google listed sources...Jensen sells it at $15 a gallon...You cannot drink isopropyl, so it will last longer around the house...<G>
Usual disclaimers apply... Jerry, wa2dkg _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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NOW he tells me!! :)
Ron Wb1hga Jerry writes: ...You cannot drink isopropyl, so it will last longer around the house...<G> _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Jeremiah McCarthy
You can get 99% isopropyl at most pharmacies .. you might need to ask
at the counter, sometimes they keep in in back for some reason .. de John/W1RT On 5/17/05, Jeremiah McCarthy <[hidden email]> wrote: > 190 proof ethanol (grain alcohol) does cut rosin flux very well and is available at the local liquor store...It is EXPENSIVE, about $23 for 750 ml...99% Isopropyl alcohol is about $5 a pint at several Google listed sources...Jensen sells it at $15 a gallon...You cannot drink isopropyl, so it will last longer around the house...<G> > > Usual disclaimers apply... > > Jerry, wa2dkg > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Re: ethanol/isopropyl
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In reply to this post by Jeremiah McCarthy
Radio Shack and Circuit Specialists sell felt-tip marker like things for
cleaning boards. I got one free from CS with an order, and another for 99 cents on closeout at RS. Leigh / WA5ZNU/PM _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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I use Graves USP 190 proof grain alcohol. You can buy it at the liquor
store. It does a good job on the boards, and if you have any left over, it tasts pretty good in orange juice. At 03:00 PM 5/17/2005, you wrote: >Radio Shack and Circuit Specialists sell felt-tip marker like things for >cleaning boards. I got one free from CS with an order, and another for 99 >cents on closeout at RS. > >Leigh / WA5ZNU/PM 73, Chas, W1CG _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by zeke7237
Prices will vary from area to area. Here, the grain alcohol at the liquor
store is priced less per unit volume than a similar concentration isopropyl alcohol at the pharmacy. The last 750 ml bottle I bought was about $12, and I was quoted about $10 per pint for isopropyl. 73, Don W3FPR > -----Original Message----- > > You can get 99% isopropyl at most pharmacies .. you might need to ask > at the counter, sometimes they keep in in back for some reason .. > > de John/W1RT > > On 5/17/05, Jeremiah McCarthy <[hidden email]> wrote: > > 190 proof ethanol (grain alcohol) does cut rosin flux very well > and is available at the local liquor store...It is EXPENSIVE, > about $23 for 750 ml...99% Isopropyl alcohol is about $5 a pint > at several Google listed sources...Jensen sells it at $15 a > gallon...You cannot drink isopropyl, so it will last longer > around the house...<G> > > > No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.11.11 - Release Date: 5/16/2005 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Jeremiah McCarthy
In a message dated 5/17/05 2:25:49 PM, [hidden email] writes: I use Graves USP 190 proof grain alcohol. You can buy it at the liquor store. It does a good job on the boards, and if you have any left over, it tasts pretty good in orange juice. You've just convinced me to buy and build a K2. I'll have the cleanest circuit boards around. Hope I get all the parts installed correctly after I sample a little of that cleaning fluid and orange juice. |
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Nobody has mentioned denatured alcohol yet. Since it also is not
drinkable (more than once), it does not have any liquor tax and is quite a bit cheaper than Everclear. I'm wondering if there is some reason NOT to use this product, which I believe is mainly ethanol and methanol. John AA0VE [hidden email] wrote: >In a message dated 5/17/05 2:25:49 PM, [hidden email] writes: > > > > >>I use Graves USP 190 proof grain alcohol. You can buy it at the liquor >>store. It does a good job on the boards, and if you have any left over, it >>tasts pretty good in orange juice. >> >> >> Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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The denaturing agents in things like rubbing alcohol will leave undesirable
residues as may the coloring agents used now in some rubbing alcohol. Use Everclear, or pure Ethyl alcohol, (taxable by Feds) for circuit board cleaning. Cut off the bristles of standard "Acid Brush" to half the normal length to get stiff bristle effect for scrubbing the soldered joints. Acid brushes seem to be stocked by Home Depot and Lowe's as well as wholesale plumbing supply houses. You want the pure stuff, without risk of residue. -Stuart K5KVH _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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----- Original Message -----
From: "Stuart Rohre" <[hidden email]> To: <[hidden email]>; <[hidden email]> Sent: Tuesday, May 17, 2005 4:56 PM Subject: Re: [Elecraft] ethanol/isopropyl > The denaturing agents in things like rubbing alcohol will leave > undesirable > residues as may the coloring agents used now in some rubbing alcohol. > > Use Everclear, or pure Ethyl alcohol, (taxable by Feds) for circuit board > cleaning. Cut off the bristles of standard "Acid Brush" to half the > normal > length to get stiff bristle effect for scrubbing the soldered joints. > Acid > brushes seem to be stocked by Home Depot and Lowe's as well as wholesale > plumbing supply houses. > > You want the pure stuff, without risk of residue. > -Stuart > K5KVH > I'll tell ya - then I got a question - for something as important as MY rig, I'd spend the extra for the good stuff just to be sure. Then, when done, I'd dump the bottle down the toilet. Now the Q: Why is it so important to clean off flux residue? -- Just my 2¢ worth... 73's es gd dx de Ken KGØWX Grid EM17ip, Flying Pigs #1055, Digital On Six #350, Proud builder & owner of Elecraft K2 #4913 -- Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.11.11 - Release Date: 5/16/2005 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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On May 17, 2005, at 2:50 PM, Ken Bessler wrote: > Now the Q: Why is it so important to clean off flux residue? As long as the flux is nonconductive, there's no reason to clean it off unless you expect a surprise inspection by a roving band of PC board photographers. I haven't cleaned flux off a PC board in 15 years and don't plan to. The electrons don't mind a little camouflage ;) 73, Wayne N6KR --- http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by John Lonigro
Hi John:
I hope there's no reason not to use it, as I've been using it for a couple decades now! 73, Tom At 04:23 PM 5/17/05, John R. Lonigro wrote: >Nobody has mentioned denatured alcohol yet. Since it also is not >drinkable (more than once), it does not have any liquor tax and is quite a >bit cheaper than Everclear. I'm wondering if there is some reason NOT to >use this product, which I believe is mainly ethanol and methanol. > >John AA0VE > >[hidden email] wrote: > >>In a message dated 5/17/05 2:25:49 PM, [hidden email] writes: >> >> >> >> >>>I use Graves USP 190 proof grain alcohol. You can buy it at the liquor >>>store. It does a good job on the boards, and if you have any left over, it >>>tasts pretty good in orange juice. >>> >>> >_______________________________________________ >Elecraft mailing list >Post to: [hidden email] >You must be a subscriber to post to the list. >Subscriber Info (Addr. Change, sub, unsub etc.): >http://mailman.qth.net/mailman/listinfo/elecraft > >Help: http://mailman.qth.net/subscribers.htm >Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by wayne burdick
Ditto here, for over 45 years, if you include point to point wiring...
73 de W5SV, Dave wayne burdick wrote: > > On May 17, 2005, at 2:50 PM, Ken Bessler wrote: > >> Now the Q: Why is it so important to clean off flux residue? > > > As long as the flux is nonconductive, there's no reason to clean it > off unless you expect a surprise inspection by a roving band of PC > board photographers. > > I haven't cleaned flux off a PC board in 15 years and don't plan to. > The electrons don't mind a little camouflage ;) > > 73, > Wayne > N6KR _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Tom Hammond-3
Tom, N0SS wrote:
I hope there's no reason not to use it, as I've been using it for a couple decades now! ----------------------- I'll confess that when I need to shoot a picture of a PC board I'll clean up any visible rosin residue too. In those cases I use denatured alcohol on a cotton tip swab (e.g. Q-Tip brand) and wipe each pad dry. But that's only so there's no distracting spots in the photo. After all, who believes that my operating desk is as clean as shown in the photos either! Ron AC7AC _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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