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Old 06-27-2017, 04:42 PM   #1
Bus Nut
 
Join Date: Oct 2015
Posts: 333
Year: 2003
Chassis: E-450
Engine: 7.3 Turbo
Regular spray foam vs fire retardant

What are you guys using?

I'm looking at the kits on ebay and for 600BF, regular is about $582 and the same kit but with fire retardant foam is about $50 more.

Thoughts?
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Old 06-27-2017, 05:54 PM   #2
Bus Nut
 
Join Date: Jun 2016
Location: Orange County, CA
Posts: 866
Year: 1990
Coachwork: integral
Chassis: Crown Supercoach II (rear engine)
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
What do you want - fire retardant or thermal insulation? Just bear in mind what happened in London recently: insulation often is horribly flammable.

John
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Old 06-27-2017, 07:27 PM   #3
Bus Nut
 
Join Date: Oct 2015
Posts: 333
Year: 2003
Chassis: E-450
Engine: 7.3 Turbo
They both have the same r-value. Just one is fire retardant and the other isn't.

I just couldn't decide if it made sense to worry about fire retardant foam. My thinking was that with the metal barrier on the outside, the only way the foam catches on fire is from a fire thats already on the inside of the bus.

From what I can tell looking through build threads, no one is worried about their insulation catching on fire. Just wanted to check before buying...
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