 how to remove tar from relay board? |
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| rwilner |
 Apr 12 2012, 12:44 PM
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#1
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No Ghosts in the Machine  Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States  |
I did a search and found a few threads, but I'm having kind of a hard time getting all the tar off the underside of the relay board to a clean surface.
I was able to chip a lot out. Then I tried a heat gun which really just turned it into goo -- didn't make it easier to remove. Then i soaked it in mineral spirits, which kind of gummed it up...I was hoping it would dissolve it. How can I get the underside pristine? Other chemicals (isopropyl alcohol)? Some kind of media blast? |
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| Valy |
Apr 13 2012, 12:14 PM
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#2
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Senior Member Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
QUOTE(rwilner @ Apr 12 2012, 11:44 AM)  I did a search and found a few threads, but I'm having kind of a hard time getting all the tar off the underside of the relay board to a clean surface. I was able to chip a lot out. Then I tried a heat gun which really just turned it into goo -- didn't make it easier to remove. Then i soaked it in mineral spirits, which kind of gummed it up...I was hoping it would dissolve it. How can I get the underside pristine? Other chemicals (isopropyl alcohol)? Some kind of media blast? Rich, if you can melt the tar with the heat gun, you already resealed it. I know you're trying to get it of and I assume you want to recover the board. But if you can just reseal it then I think you're done (IMG:style_emoticons/default/confused24.gif) |
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| rwilner |
Apr 13 2012, 12:16 PM
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#3
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
QUOTE(Valy @ Apr 13 2012, 02:14 PM) Rich, if you can melt the tar with the heat gun, you already resealed it. I know you're trying to get it of and I assume you want to recover the board. But if you can just reseal it then I think you're done (IMG:style_emoticons/default/confused24.gif) I'm trying to remove it so I can solder the rivets and fix a couple of non conducting traces. |
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Posts in this topic
rwilner how to remove tar from relay board? Apr 12 2012, 12:44 PM
r_towle dry ice, gloves, chisel Apr 12 2012, 12:59 PM
rwilner
chisel
I'm hoping there's a chemical al... Apr 12 2012, 01:13 PM Jeff Bowlsby Submerge the whole board in Acetone for a week, th... Apr 12 2012, 01:25 PM rwilner
Submerge the whole board in Acetone for a week, t... Apr 12 2012, 01:33 PM Jeff Bowlsby It werks. :) Apr 12 2012, 01:57 PM dlee6204 I stick my boards in the freezer overnight before ... Apr 12 2012, 02:07 PM Midman914 Try Xylene, we use it at work to clean our tar bas... Apr 12 2012, 04:44 PM ClayPerrine I just did this the other day.
Heat gun to soft... Apr 13 2012, 11:38 AM Valy
Rich, if you can melt the tar with the heat gun... Apr 13 2012, 12:54 PM underthetire Goof off seemed to take it off. I heated mine up a... Apr 13 2012, 12:35 PM 02loftsmoor Berrymans B12 really loosened the tar up, still a ... Apr 13 2012, 01:02 PM |
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