Heat Shield for Transmission Tunnel

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RMutt2017

RMutt2017

10 Year
Joined
May 26, 2012
Threads
10
Messages
118
Location
San Francisco
So I am pulling the tranny (A440f) and while it is out clean up underneath. I am thinking of putting some sort of self adhesive heat shield on the outside(inside?) of the transmission tunnel. Does anyone have any experience with doing this, what products did you use and how has it held up. And how much did you use, or think would be needed. Also what about the edges? cover all with silver tape? Most products sell a companion tape for seams.

I've seen a bunch of stuff online;
Liquid applications-nope, just seems like a mess.
Shields that require adhesive spray- cheap, but I don't think will handle extremes of tranny tunnel,
Self adhesive- expensive, more or less $10-20 a sq.ft. And only the most expensive(HP Sticky Shield) specifically said it is for exterior of tranny tunnel. Also there is a really cheap one, home depot style.
links:
http://www.heatshieldproducts.com/automotive/heat-shield-and-thermal-barriers/hp-sticky-shield
http://store.secondskinaudio.com/thermal-block/
http://www.thermotec.com/products/13500-adhesive-backed-heat-barrier.html
http://www.frostking.com/foil-and-fiberglass-duct-wrap/

Any thoughts? I am leaning towards the thermotec, I've budgeted a $100 and I think 8 sq.ft. will do it.
 
I said the same thing in each sentence. I guess that's what I get for trying to post on MUD while the kids are screaming and the dogs are barking all at the same time! With the Thermotec, the material itself is very heatproof. But if the adhesive gets hot enough, it will lose it's tackiness. If you can find a very high temperature adhesive, you may be in business!
 
I glued Reflectix (foil covered bubble wrap) to the underside of an FJ45 transmission tunnel, using Liquid Nails. Worked like a champ and greatly cut down on the furnace of heat that used to fill the truck. I don't think any spray trim adhesive products would hold up over time.
 
Interesting, did ya just sort of trowel it on? I think I might go that route. I found some relatively cheap stuff EZ-Cool.
http://www.lobucrod.com
Just needs to be attached properly, Ill see which liquid nails has the best high heat adhesion and use a bunch of that.
 
Be careful the "stuff" and adhesive don't trap water or you'll have rust rearing its ugly head before you know it.
 
Arise old thread and be new again. @RMutt2017 Did you ever do this? If so how did it turn out? It averages 100+ out here in the summer and I'm thinking of coating the entire inside of the truck with this stuff to try and cut down on radiant heat in the cab. Might even make some window shades if I have enough left over for when I'm sleeping in the snowy mountains in the winter and want to keep heat in the cab.
 
No never did it. A couple of reasons.
I had the transmission out and was going to put something on the outside, but looked underneath and it was a mess would have been a bitch to get clean enough for the adhesive to get good purchase.
Also maintenance, how do you get at it if it starts falling off.
Lazy, just didn't bother to, used above reason as justification.

I like the window shade idea, it would be cool(haha pun...)if they had little clips you could roll up in the window, and velcro for the others. Hmmmm....
 
Snagged a piece of something that looks something like this at the pick n pull... was thinking it would be a great way to cut direct noise and heat between the tranny and floor... it is double wall/honeycomb -ish stuff, metal and flexible.

images
 
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