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Old 03-21-2018, 10:45 AM   #1
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Seat Removal - Covering / Sealing Holes

I am in the process of gutting my short bus. After pulling the seats, I'm obviously left with holes thru the floor where the seat bolts were. Any advice on how best to seal and rustproof the holes? tx
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Old 03-21-2018, 12:31 PM   #2
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People here have used every technique from a smear of silicone seal to pennies to welding (I welded mine). Given that everything you build will go on top of the floor, I'd opt for the most permanent method I could afford to insure no entry points for water. Thin sheet metal secured with screws & sealant...coins...metalized flashing tape...whatever makes you feel comfortable.

PS...silicone seal is a bad choice for anything on a bus. Use something like an OEM automotive seam sealer.
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Old 03-21-2018, 12:59 PM   #3
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Meh ... Tango, I greatly respect your expertise, but personally feel welding is overdoing it. After all, water is generally not going to be entering ... from the floor and up. Unless you plan on turning your bus into an amphibious vehicle. I siliconed all the holes and then used aluminum tape over the silicone, then put my floor over that. No issues.
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Old 03-21-2018, 01:23 PM   #4
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Roger that. I absolutely tend towards overdoing things.
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Old 03-21-2018, 02:02 PM   #5
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Far better to over do, than under do...
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Old 03-21-2018, 02:35 PM   #6
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For sure. I love the work Tango has done and meant no disrespect. Most of us don't have welding equipment though, and of all the areas to skimp on, silicon is an adequate solution to OP's question. I agree though that maybe a heavier duty automotive sealer would be best. Even JB Weld would be fine, and likely never come off. As long as the hole is covered there should be no issues. I'd worry more about all the folks putting holes in their roofs, as any moisture that seeps through will cause some serious issues with all that stock fiberglass insulation.
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Old 03-21-2018, 08:46 PM   #7
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Thanks everyone for your wisdom. I tend to over do / engineer things and I have a welder so...... I did see rubber sheet metal hole plugs while shopping at my favorite place, Harbor Freight. Anybody got anything on those? Wondering if they'd leave a lump under the new flooring... Appreciate y'all's feedback!!
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Old 03-21-2018, 09:04 PM   #8
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Has anyone given this a try?

https://www.homedepot.com/p/GCP-Appl...3002/202088840

I have been considering it. I have used this on my home in New Hampshire some years ago and thought it might fit the bill of what we're looking to do when our floor is cleared

What do you guys and gals think?

James
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Old 03-21-2018, 09:18 PM   #9
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Originally Posted by JamieJackson View Post
Has anyone given this a try?

https://www.homedepot.com/p/GCP-Appl...3002/202088840

I have been considering it. I have used this on my home in New Hampshire some years ago and thought it might fit the bill of what we're looking to do when our floor is cleared

What do you guys and gals think?

James
The steel floor is a vapor barrier. Adding another risks moisture being trapped.

Just my 2c.
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Old 03-21-2018, 11:07 PM   #10
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Originally Posted by Tango View Post
Roger that. I absolutely tend towards overdoing things.
I occasionally go overboard as well. and its an excuse to practice with my cheap harbor freight welder. the question i have for experienced welders is, if i use my the flux core wire, will the heat from welding and the welded material itself be a rust magnet on the bottom where i cant clean it up and paint it when done?
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