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06-15-2018, 11:30 AM
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#1
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Skoolie
Join Date: Jul 2015
Location: Manitou Springs, CO
Posts: 219
Year: 1991
Coachwork: Ward
Chassis: International 3800
Engine: DT466
Rated Cap: 65 passenger
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3m 560 Adhesive Sealant over Rustoleum?
I Osphoed (I think that is a verb) my floor and then painted it with Rustoleum Professional White Gloss.
I need to plug holes. I don't know how to nor own a welder so I am going to glue the patches in. I am planning on useing 3M 560 Polyurethane Adhesive.
I found on the data sheet that before using it on an oil based paint you should do a test. I don't want to open a tube if it's not going to work.
Has anyone used this (or another polyurethane adhesive sealant on Rustoleum?
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06-16-2018, 05:55 AM
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#2
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Bus Nut
Join Date: Jan 2018
Location: Brevard County, FL
Posts: 911
Year: 1990
Coachwork: Bluebird
Chassis: Ford
Engine: 6.6 New Holland Diesel
Rated Cap: 60 kids, 10 window
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I used polyurethane roofing sealant and screws the patches down.
__________________
Nick
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06-16-2018, 06:42 AM
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#3
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by karrlot
I Osphoed (I think that is a verb) my floor and then painted it with Rustoleum Professional White Gloss.
I need to plug holes. I don't know how to nor own a welder so I am going to glue the patches in. I am planning on useing 3M 560 Polyurethane Adhesive.
I found on the data sheet that before using it on an oil based paint you should do a test. I don't want to open a tube if it's not going to work.
Has anyone used this (or another polyurethane adhesive sealant on Rustoleum?
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I just use the Dynatron 550 Seam Sealant from Auto Zone.
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06-16-2018, 08:41 AM
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#4
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Bus Nut
Join Date: Jan 2018
Location: Brevard County, FL
Posts: 911
Year: 1990
Coachwork: Bluebird
Chassis: Ford
Engine: 6.6 New Holland Diesel
Rated Cap: 60 kids, 10 window
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Quote:
Originally Posted by EastCoastCB
I just use the Dynatron 550 Seam Sealant from Auto Zone.
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I would use that if doing again.
__________________
Nick
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06-16-2018, 08:57 AM
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#5
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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For adhesive I'd just get some epoxy and stick down patches over the holes.
For best adhesion I'd ospho, then glue, then prime or paint.
For the OP seam sealer won't work as an adhesive.
For patching large holes using fasteners and a sheet of steel then seam sealer is what you want.
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06-17-2018, 09:33 AM
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#6
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Skoolie
Join Date: Jul 2015
Location: Manitou Springs, CO
Posts: 219
Year: 1991
Coachwork: Ward
Chassis: International 3800
Engine: DT466
Rated Cap: 65 passenger
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Quote:
Originally Posted by EastCoastCB
For adhesive I'd just get some epoxy and stick down patches over the holes.
For best adhesion I'd ospho, then glue, then prime or paint.
For the OP seam sealer won't work as an adhesive.
For patching large holes using fasteners and a sheet of steel then seam sealer is what you want.
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Dang it! I Osphoed, then painted with Rust-Oleum. Now I need to go back and patch and fill holes.
Thoughts on next step? Now I shouldn't use an adhesive to hold the patches in because the adhesive won't stick to the rustolem?
I can figure out a fastener for the big patches (eg sheet metal screws). Then seal with seam sealer.
Will seam sealer stick to Rust-Oleum?
I was planning on using pennies to patch the screw and bolt holes. Will an epoxy work for that.
Darn it! I didn't think my steps through!
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06-17-2018, 09:53 AM
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#7
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Just go look at adhesives at a hardware store and find one that will work on painted surfaces. Glue down something to cover the holes, floor it and forget it.
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06-17-2018, 12:31 PM
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#8
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Bus Nut
Join Date: Jan 2018
Location: Brevard County, FL
Posts: 911
Year: 1990
Coachwork: Bluebird
Chassis: Ford
Engine: 6.6 New Holland Diesel
Rated Cap: 60 kids, 10 window
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Quote:
Originally Posted by EastCoastCB
Just go look at adhesives at a hardware store and find one that will work on painted surfaces. Glue down something to cover the holes, floor it and forget it.
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What CB said. I'm sure the roofing sealant I used will be just fine for 5-15 years.
__________________
Nick
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06-17-2018, 12:33 PM
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#9
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Bus Nut
Join Date: Jan 2018
Location: Brevard County, FL
Posts: 911
Year: 1990
Coachwork: Bluebird
Chassis: Ford
Engine: 6.6 New Holland Diesel
Rated Cap: 60 kids, 10 window
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And I put it on over the rustoleum primer and the painted over it with Rustoleum Ford blue tractor paint
__________________
Nick
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07-10-2018, 12:27 AM
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#10
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Bus Nut
Join Date: Feb 2018
Location: Tahoe
Posts: 513
Year: 1997
Coachwork: International
Chassis: 3000RE
Engine: T444E w/ MT643
Rated Cap: 84 pass, 40'
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Quote:
Originally Posted by karrlot
Dang it! I Osphoed, then painted with Rust-Oleum. Now I need to go back and patch and fill holes.
Thoughts on next step? Now I shouldn't use an adhesive to hold the patches in because the adhesive won't stick to the rustolem?
I can figure out a fastener for the big patches (eg sheet metal screws). Then seal with seam sealer.
Will seam sealer stick to Rust-Oleum?
I was planning on using pennies to patch the screw and bolt holes. Will an epoxy work for that.
Darn it! I didn't think my steps through!
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Sikkaflex will stick. It's an adhesive/sealant. I used it after primer before painting, but it stuck onto the outside of the bus which had been painted where we covered a flasher hole. We haven't put the screws in yet and it's not budging. Read about it here.
__________________
middle aged mom on a learning adventure
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07-10-2018, 08:36 AM
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#11
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Bus Nut
Join Date: Apr 2018
Location: Wisconsin N.E.
Posts: 412
Year: 2000
Coachwork: Thomas
Chassis: Thomas
Engine: 5.9
Rated Cap: 72
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I really love the two part epoxy from harbor freight.
That stuff sticks to just about anything (except silicone) and is pretty tough for a buck 99
Edit, don't use it on parts that stay in the sun it gets brittle
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10-18-2018, 09:35 AM
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#12
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Bus Geek
Join Date: Oct 2016
Location: Essex, MD
Posts: 3,738
Year: 1999
Coachwork: Blue Bird
Chassis: Blue Bird TC RE 3904, Flat Nose, 40', 277" wh base
Engine: 8.3L Cummins ISC 260hp, MT643, 4.44 rear
Rated Cap: 84 pax or 1 RV; 33,000lbs
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Quote:
Originally Posted by EastCoastCB
I just use the Dynatron 550 Seam Sealant from Auto Zone.
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How many tubes? 48" with a 2 inch overlap times 5 sheets per side + front and back. Top and bottom probably don't need sealed? Maybe just for piece of mind.
A 10 oz tube isn't going to go very far.
These dudes have a price break point at 24 tubes. And the starting price is cheaper than the Dynatron.
https://www.emisupply.com/catalog/ad..._description=1
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10-18-2018, 09:46 AM
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#13
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Bus Geek
Join Date: Oct 2016
Location: Essex, MD
Posts: 3,738
Year: 1999
Coachwork: Blue Bird
Chassis: Blue Bird TC RE 3904, Flat Nose, 40', 277" wh base
Engine: 8.3L Cummins ISC 260hp, MT643, 4.44 rear
Rated Cap: 84 pax or 1 RV; 33,000lbs
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Quote:
Originally Posted by Whatthefak
I really love the two part epoxy from harbor freight.
That stuff sticks to just about anything (except silicone) and is pretty tough for a buck 99
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Name?
Quote:
Edit, don't use it on parts that stay in the sun it gets brittle
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Direct sunlight or heating/cooling? I want something that will flex.
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03-06-2021, 11:22 PM
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#14
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Bus Nut
Join Date: May 2017
Location: Houston TX
Posts: 570
Year: 1998
Coachwork: Amtran
Chassis: International
Engine: dt466e
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Quote:
Originally Posted by EastCoastCB
I just use the Dynatron 550 Seam Sealant from Auto Zone.
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Is that the only product you used? Just that alone, simply filling the wholes up?
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