GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » "Scientific" evaluation of several insulating materials
"Scientific" evaluation of several insulating materials [message #173963] Tue, 19 June 2012 18:08 Go to next message
zhagrieb is currently offline  zhagrieb   United States
Messages: 676
Registered: August 2009
Location: Portland Oregon
Karma: 0
Senior Member
I spent a little time cooking 4 different materials to see which, if any, might be a good insulator for the engine side of my cockpit floor. You might be curious what I found:

http://www.gmcmhphotos.com/photos/quot-scientific-quot-insulation-test/p44555-4-samples-on-top-of-oven.html

The EZ Cool folks offer their product as a noise/heat barrier for automobiles and say it will easily handle engine compartment temperatures but I found that the 1/8" core collapsed with heat so I question it's thermal abilities over time.
The adhesive backed foil from Home Depot I will probably use on the firewall behind the heater box where "no man has ever gone before".
The Home Depot (on line only) Radiant barrier I'll probably use on the cockpit floor, foil down, in lieu of a carpet pad.
Not quite sure what to use on the engine side, suggestions appreciated.
Glenn



Glenn Giere, Portland OR, K7GAG '73 "Moby the Motorhome" 26'
Re: "Scientific" evaluation of several insulating materials [message #173972 is a reply to message #173963] Tue, 19 June 2012 20:24 Go to previous message
g.winger is currently offline  g.winger   United States
Messages: 792
Registered: February 2008
Location: Warrenton,Missouri
Karma: 0
Senior Member
Glenn. Search my old posts on insulation. I hate to type. I think 7 or 8 thousands foil would be better than the .005 I used with the ceramic insulation. Wife commented that it was much quieter. You don't here the 507 cubic inches unless its a real steep hill.,,,,,,PL
Previous Topic: [GMCnet] Difference between Digi-Panels
Next Topic: exhaust ?
Goto Forum:
  


Current Time: Thu Feb 06 11:00:02 CST 2025

Total time taken to generate the page: 0.04554 seconds