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Old 07-31-2021, 07:37 AM   #1
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2018 25' Flying Cloud
Provo , Utah
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Sealing the floor hole where old wires used to run

As part of my lithium battery upgrade, I've removed the old wires from the small battery box on the front of coach. I know some people leave them, but I didn't want "dead" wires to clutter things up.


In my 25 FB Twin, the wires run to the front curb side corner of the coach through a hole in the floor. They were sealed by some sort of pliable black sealant. Now that I've removed a lot of the wires that run through the hole, lots of new space in the hole and it needs to be re-sealed with new sealant.



Does anyone know what type of sealant that is? I can use some sort of silicone sealant, but thought I'd check if anyone knows what would be a good choice.
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Old 07-31-2021, 07:41 AM   #2
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Size of hole? Picture?
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Old 07-31-2021, 09:03 AM   #3
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Quote:
Originally Posted by jranck View Post
As part of my lithium battery upgrade, I've removed the old wires from the small battery box on the front of coach. I know some people leave them, but I didn't want "dead" wires to clutter things up.


In my 25 FB Twin, the wires run to the front curb side corner of the coach through a hole in the floor. They were sealed by some sort of pliable black sealant. Now that I've removed a lot of the wires that run through the hole, lots of new space in the hole and it needs to be re-sealed with new sealant.



Does anyone know what type of sealant that is? I can use some sort of silicone sealant, but thought I'd check if anyone knows what would be a good choice.

I wouldn't over-think it. I would probably cut short dowl segments that mostly fit snug in the holes and use silicon, Goop, or even a latex caulk to hold them in place. The good thing is that nothing will be pushing or pulling on them, so most anything should work fine.


You should probably check them once a year or so just like you would window and roof sealant.
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Old 07-31-2021, 09:21 AM   #4
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Hi

Wires going through a hole rub on the edge of the hole. That can (eventually) have an impact on the insulation on the wires. The "best" way to handle a hole is with some sort of padding on the edge of the hole. There are lots of ways to do this, in addition to the plastic grommets made for the task ( which you buy a hundred at a time .... what do you do with the other 99? ).

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Old 07-31-2021, 11:55 AM   #5
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I like using gland connectors. They are often waterproof and can be fastened in place. If there isn't enough space to put the nut on then you could glue it place with construction adhesive or silicone.
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Old 08-01-2021, 09:27 AM   #6
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I left the old positive connected and continue to use it to power the jack rather than run a new wire to do the same thing.
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Old 08-01-2021, 09:35 AM   #7
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This is what I use.

https://www.amazon.ca/AP-Products-01...874724105&th=1
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Old 08-01-2021, 12:17 PM   #8
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Is anybody using one of the spray foam insulations (some of which contain a rodent deterrent) to close up gaps like the OP has?
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Old 08-01-2021, 03:28 PM   #9
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Electrical duct seal

Duct seal is a clay like material which is used to seal electrical connections. It is non hardening, very pliable, easily removed and easly formed. It should be be found in big box stores or electrical supply houses.


I use it to seal elecrrical amd pipe penetrations. It works well in areas inacessable with a caulking gun.I have used it for years and yet to find any penetration by rodents.
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Old 08-01-2021, 05:29 PM   #10
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Is anybody using one of the spray foam insulations (some of which contain a rodent deterrent) to close up gaps like the OP has?

Spray foam (the expanding stuff) does well indoors, but not exposed to the elements, at least in my experience. I wouldn't use it where it is exposed outside.
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Old 08-01-2021, 05:30 PM   #11
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I'll probably use this. Thanks!
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Old 08-01-2021, 08:18 PM   #12
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Iíve used it in my previous RVs to seal up the huge holes left during manufacture. I know it worked for at least 3 years in my motor home.

Quote:
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Spray foam (the expanding stuff) does well indoors, but not exposed to the elements, at least in my experience. I wouldn't use it where it is exposed outside.
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Old 08-03-2021, 10:33 PM   #13
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Can you send me photo's of the battery relocation process. I am considering installing lithium batteries under the bed. Also can you provide schematic for the wiring if possible.
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Old 08-04-2021, 06:30 AM   #14
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It may take me a few days, but I'll PM you modified schematics and some photos.
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