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Dynamat heat shield

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tahoe healey

tahoe healey

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I am curious about those who have used Dynamat as a heat shield on the interior. Which thickness and who much is needed for a BJ8? Does it work?
Thanks
 
I'm yet to test the effectiveness - I'm still trying to get the car started... :-(

However, Dynamat is 1.6mm thick. It comes in a box of 9 sheets. Everyone said that one box is enough. I decided to totally line the cabin from just under the windscreen to the bottom lip of the gutter at the back of the cabin, and everything in between. With very little wastage I used 15 1/2 sheets (ie 2.5 sheets left over from TWO boxes.

https://i1349.photobucket.com/albums/p744/356fair/Healey pics/IMG_1559_zps24ff5727.jpg
https://i1349.photobucket.com/albums/p744/356fair/Healey pics/IMG_1560_zps8c4bcd33.jpg
 
I also lined my entire cockpit with it and used about the same amount. It is great for sound reduction, but IMHO you need to add something else on top of it for maximum heat insulation, particularly down on the left side footwell where the exhaust runs. I used dynaliner (which is a foam insulation) on my floorboards, tranny tunnel, and firewall. It seems to work pretty well, but I know there are other products for heat insulation that others have used. You can't go wrong with dynamat for sound deadening (and some heat shielding) though.
 
Keith

Did you have to add the dynaliner as well as the sheet insulation that normally is bolted to the underside of the floor (used to be asbestos, now i imagine its a cement fibre sheet?), or do you just have the dynamite and dynaliner?
 
I'm always puzzled by the "Dynamat heat insulation" questions. Dynamat products are sound insulation, not heat insulation. From their website: "Dynamic Control seeks to produce and deliver high quality acoustic solutions to the world with speed and accuracy, for better sound everywhere".

I use foam carpet insulation in my TR. Compared six different heat insulation products, and found the foam stuff was miles better than the other five for heat reduction.
 
CanberraBJ8 said:
Keith

Did you have to add the dynaliner as well as the sheet insulation that normally is bolted to the underside of the floor (used to be asbestos, now i imagine its a cement fibre sheet?), or do you just have the dynamite and dynaliner?
Click to expand...

Yes, I kept the original off-white hard boards for additional heat insulation. You really can't have too much heat insulation in these cars.
 
I used a material from Eastwood that is similar and according to their catalog has properties almost as good as Dynamat. and is much cheeper. On top of that i used an insulation from a building supply place that has a layer of some type of foam between foil faces. Also I put a piece of 1/2 inch insulating board over the muffler. Still a ways from getting back on the road so don't know well this will work but it has to be better than original.
 
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