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Old 02-19-2024, 07:21 PM   #1
Join Date: May 2023
Location: New Orleans
Posts: 15
Year: 1997
Coachwork: Blue Bird
Engine: 7.3
Is everything as it SEAMS?

Hi. I'm making progress but the bus is still taking on water (less water, but still). I've started sealing with Eastwood seam sealer and was wondering. Is there a seam under all of the black trim on a Skoolie or no? Should I be appying sealant along all of the black as I've been doing? Thank you

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Old 02-19-2024, 07:39 PM   #2
Join Date: Sep 2023
Location: Northeast
Posts: 55
Year: 2008
Coachwork: Thomas Built Buses
Chassis: Ford E-450 cutaway
Engine: 6.0 Power Stroke diesel
Rated Cap: GVWR 14,050
On my bus at least, the added metal structural trim is just screwed on and painted over. Nothing behind to seal, and even plain galvanneal underneath.

I suppose the paint was expected to seal, and they weren't expected to last forever.
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Old 02-19-2024, 10:40 PM   #3
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Join Date: Oct 2021
Location: Jacksonville, FL
Posts: 719
Year: 2003
Coachwork: BlueBird
Chassis: TC2000 28ft
Engine: Cummins ISB 5.9 24v, MD3060
Rated Cap: 14
I put seam sealer on the top edge of my rub rails but not the bottom. If a rivet leaks, I want that water to drain to daylight rather than pool and find it's way to the inside of a rivet hole. After I painted, can't tell its there..
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Old 02-20-2024, 07:19 AM   #4
Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 18,809
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
most of the bus rub rails have weep holes.. or divets in the bottom.. you can seal the top edge but leave the bottom open so it can drain.. if you take those rub rails off and then reattach them make sure they are not upside down...
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Old 02-20-2024, 08:00 AM   #5
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Join Date: Jan 2019
Location: Philadelphia
Posts: 7,000
Year: 2003
Coachwork: International
Chassis: CE 300
Engine: DT466e
Rated Cap: 65C-43A
It's also worth making sure those weep holes on the bottom edge of the rub rails aren't clogged with dirt. I cleaned mine out one day when it hadn't been raining for more than a month and a bunch of water came pouring out. Rub rails aren't really especially prone to rusting as they're galvanized, painted and much thicker stock than the side panels, but it's still not great to have them full of water.
Rusty 87 build thread
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Old 02-24-2024, 03:46 PM   #6
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Join Date: Mar 2019
Posts: 57
I rolled on rubberized roof sealer (white), I bought at Lowe's. Made for sealing roofs of RVs and trailers. Worked great as it put a stop to persnickety leaks.
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