 Rebuilding the Relay Board, Question about epoxy removal... |
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| RoadGlue |
 May 30 2005, 12:48 AM
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#1
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Sonoma County Gear Head  Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California 
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Hope you're all having a good weekend! I'm currently rebuilding my relay board (and the rest of the teener!) and have managed to scrape/chip off most of the epoxy from the bottom side of the relay board. Geez, that stuff is like soft obsidian! I've heard that there are certain chemicals that will safely dissolve the epoxy without damaging the board, but couldn't find any information by searching through the archives. Anybody care to share their tricks?
I'd have Teknon supply me with one of his rebuilt boards, but I'm a do-it-myself and learn-it sorta nut. Plus I love soldering. :) Thanks! -- Randy Attached image(s) 
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Replies(1 - 10)
| RoadGlue |
May 30 2005, 12:48 AM
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#2
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California
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more
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| RoadGlue |
May 30 2005, 12:49 AM
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#3
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California
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last one!
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| Mueller |
May 30 2005, 01:09 AM
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#4
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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Hey Randy,
I used Castrol SuperClean to remove the "stuff" (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) I then cleaned up the pins and contacts with a soft metal brush....I also "tweaked" the pins and opened some of the up a little to compensate for wear.... |
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| RoadGlue |
May 30 2005, 01:14 AM
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#5
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California
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Hi Mike,
Where can one pick up Castrol SuperClean? Google isn't shedding much light on suppliers, but I might just be impatient after working out in the sun all day. :) Thanks! Randy |
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| Andyrew |
May 30 2005, 01:15 AM
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#6
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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Ya I took like 20 relays and took a nife and slighly opened up all the prongs and tested the relays... Good one's in one pile... couple bad ones in another...
Took like an hour.. Was a good waste of an hour last year.... |
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| markb |
May 30 2005, 01:21 AM
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#7
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914less :( Group: Members Posts: 5,449 Joined: 22-January 03 From: Nipomo, CA Member No.: 180 Region Association: Central California
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So what do you use to re-seal the bottom? I've got a stack of relay boards at the shop I'd like to start cleaning up.
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| Mueller |
May 30 2005, 01:29 AM
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#8
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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Wal-Mart, about $6 a gallon, it's a decent degreaser and cleaner, just don't soak aluminum parts in it for too long, and wear gloves (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif)
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| redshift |
May 30 2005, 01:32 AM
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#9
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
I would think West System would work, or you could get some marine epoxy..
M |
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| bperry |
May 30 2005, 02:26 AM
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#10
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Lurker Group: Members Posts: 477 Joined: 16-February 04 From: Dallas, Tx Member No.: 1,661 |
Actually, I removed mine with no solvent. All that was necessary was
some dental picks and a small screwdriver. Its kind of a pain but with some picks it scraped off pretty easily in a hour or so. I'm not sure if it helped but I did mine in the winter in the garage when the temp was in the 40s and the stuff crumbled away pretty easily. You may want to toss it in the refrigerator or freezer for a bit. Given how easy it was without solvent, I'm not sure I'd want to go that route until most of it was gone. Seems like you'd end up with a goeey sticky mess that is more work than just scraping it off. Also, to try your solvents, scrape off a small piece and put it into the solvent to see if works. I never found a solvent that worked and eventually gave up and started scraping, which turned out to be the way to go. (I've got pics if you want to see it) --- bill |
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| Air_Cooled_Nut |
 May 30 2005, 03:09 AM
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#11
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914 Ronin - 914 owner who lost his 914club.com Group: Members Posts: 1,748 Joined: 19-April 03 From: Beaverton, Oregon Member No.: 584 Region Association: None |
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