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12-05-2016, 05:04 PM
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#1
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Mini-Skoolie
Join Date: Aug 2016
Location: california
Posts: 39
Year: 1993
Coachwork: Thomas
Chassis: 3500 vandura
Engine: 6.5L GMC
Rated Cap: 16
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Roof Coating?
I'm wanting to put reflective roof coating on the outside roof with a roller to help cool my bus. I got some Henrys 287 elastomeric paint but the small area I tried on the roof came out rough and textured like alligator skin. This 'textured skin' wasn't the look I was going for and seems a great place for dirt and debris to accumulate. It says on the label not to thin it. Any suggestions of reflective roof paint that helps reduce the heat coming thru the roof but also looks smooth and doesn't look like an english muffin finish? Has anyone tried spraying the Henry's with a different result? I may pull the inside ceiling and re-insulate at a later date but don't have time to do it right now.
Thanks.
Jen
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12-05-2016, 05:41 PM
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#2
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Bus Crazy
Join Date: Nov 2011
Location: Sault Ste. Marie, Ontario
Posts: 1,791
Year: 1997
Coachwork: Thomas
Chassis: B3800 Short bus
Engine: T444E
Rated Cap: 36
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You can apply it wish a brush. That'll change the texture. Also play with different nap (fiber length) rollers. I don't remember what length I settled on, but my first attempt resulted in a finish that was too uneven for my liking. I think you'll always have some texture with a roller.
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12-08-2016, 10:57 PM
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#3
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New Member
Join Date: Nov 2016
Location: Oregon
Posts: 8
Year: 1996
Engine: Cummins 5.9
Rated Cap: 72
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I used Insuladd. The roof isn't as smooth as I would like but it's also not noticeable from the ground.
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12-09-2016, 09:54 AM
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#4
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Bus Crazy
Join Date: Jun 2016
Location: Orange County, CA
Posts: 1,358
Year: 1990
Coachwork: Crown, integral. (With 2kW of tiltable solar)
Chassis: Crown Supercoach II (rear engine)
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
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I added the ceramic micro-sphere insulation powder to Rustoleum gloss white oil-based paint for my roof, and rolled it on with a 4" short-nap roller. Two coats of it made a slightly rough suede-like finish, so I then painted two further coats of plain Rustoleum without the pixie dust - this smoothed the surface somewhat, but it's still not a perfectly smooth glossy finish. My roof gets very dirty just from al the airborne dust and grime that's unavoidable here, but I don't think it gets any dirtier by having a slightly rough finish than if it were completely smooth.
Where are you in CA?
John
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12-09-2016, 10:37 AM
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#5
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Bus Geek
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
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Worth noting is that there is an elastomeric clear coat made specifically for smoothing out finishes with the ceramic beads. Makes cleaning much easier from what I understand.
Clear water proofing sealer Elastomeric
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12-09-2016, 12:21 PM
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#6
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Mini-Skoolie
Join Date: Aug 2016
Location: california
Posts: 39
Year: 1993
Coachwork: Thomas
Chassis: 3500 vandura
Engine: 6.5L GMC
Rated Cap: 16
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Yes, Im in the bay area.
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12-09-2016, 01:24 PM
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#7
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Skoolie
Join Date: Jun 2016
Location: Texas
Posts: 160
Year: 1997
Chassis: Saf-T-Liner MVP ER
Engine: Cummins 5.9L Diesel Engine
Rated Cap: 83
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Elastomeric can be sprayed, but requires a high end sprayer with a large nozzle size.
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12-10-2016, 06:00 PM
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#8
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Bus Crazy
Join Date: Sep 2013
Location: Vacaville, Ca
Posts: 1,634
Year: 1988
Coachwork: Crown / Pusher
Engine: 8.3 Cummins
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Quote:
Originally Posted by jennynic
Yes, Im in the bay area.
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Where abouts ?
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01-10-2017, 02:18 PM
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#9
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Mini-Skoolie
Join Date: Dec 2016
Location: Bellingham , Washington
Posts: 22
Year: 1958
Coachwork: Kenworth Pacific
Chassis: CT 73 E
Engine: 350 Cummins. 855cu in
Rated Cap: 73
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roof coat
When I bought my bus it had gray paint on the roof, when it was 80deg. and sunny the inside ceiling would get as hot as 100deg. +. I painted the roof with industrial paint (base white) and now the ceiling does'nt get any hotter than ambiant temperature. I have no insulation in my ceiling. steel roof and steel ceiling with 2" air gap between. gets real cold real fast in freezing temps when heat is turned off.
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02-11-2017, 04:33 PM
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#10
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Bus Crazy
Join Date: Jan 2017
Location: Massachusetts
Posts: 1,497
Year: 2002
Coachwork: Bluebird
Chassis: Bluebird
Engine: 5.9 Cummins 24v
Rated Cap: 72 pax
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Quote:
Originally Posted by Justin McCormick
Elastomeric can be sprayed, but requires a high end sprayer with a large nozzle size.
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A lot of paint stores rent these machines. Tell them what you are painting and they should be able to set you up with the proper machine and tip combination also ask about a four foot extension so you don't have to bend over while spraying
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