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| RonnieJ |
 Sep 28 2010, 06:35 AM
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#1
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RonnieJ  Group: Members Posts: 230 Joined: 16-June 03 From: Sterling Heights, Michigan Member No.: 829 Region Association: Upper MidWest  |
The sealant on my relay board in the engine compartment is getting old and crumbling on the underside...what is used to reseal it?
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| JeffBowlsby |
Sep 28 2010, 08:54 AM
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#2
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 8,967 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Model Cast is a polyurethane...aren't polyurethanes hygroscopic (they absorb moisture?) I would think thats the wrong material to use for this purpose, regardless of how it looks.
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| Bartlett 914 |
Sep 28 2010, 09:39 AM
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#3
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Advanced Member Group: Members Posts: 2,218 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
QUOTE(Jeff Bowlsby @ Sep 28 2010, 09:54 AM)  Model Cast is a polyurethane...aren't polyurethanes hygroscopic (they absorb moisture?) I would think thats the wrong material to use for this purpose, regardless of how it looks. I didn't see that it is polyurethane. Where did you get that? It is a 2 component casting material. The finished product looks exactly like the original. I am sure it is different but looking at it it looks real nice. Glenn has used it a number of times without problems. |
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| JeffBowlsby |
Sep 28 2010, 01:24 PM
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#4
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 8,967 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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QUOTE(Bartlett 914 @ Sep 28 2010, 08:39 AM) I didn't see that it is polyurethane. Where did you get that? It is a 2 component casting material. The finished product looks exactly like the original. I am sure it is different but looking at it it looks real nice. Glenn has used it a number of times without problems. I just did a quick google search and found these: http://www.glenmarc.com/VAGABOND%20MODEL-CAST_CAT_2010.pdf Any corrosion effects of moisture absorption to the circuitry/conenctions over time would be concealed under the coating. Same problem as the original bituminous coating. Attached thumbnail(s)  
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Posts in this topic
RonnieJ relay board Sep 28 2010, 06:35 AM
Bartlett 914
The sealant on my relay board in the engine compa... Sep 28 2010, 08:20 AM RonnieJ Looks like the model cast is the way to go. Thanks... Sep 28 2010, 08:37 AM
Tom_T
Model Cast is a polyurethane...aren't polyure... Sep 28 2010, 12:42 PM dr914@autoatlanta.com we use 3-m "windo- weld" urethane. It is... Sep 28 2010, 11:18 AM Drums66 ...A type of potting material(not soil) :poke:
w... Sep 28 2010, 12:48 PM andys What the Vagabond tech sheet is refering to is eac... Sep 28 2010, 01:56 PM Bartlett 914
What the Vagabond tech sheet is refering to is ea... Sep 28 2010, 02:04 PM |
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