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**MikeB** · 01-24-2021, 12:55 PM

I used Dynamat Xtreme on a 55 Chevy car many years ago. It was very expensive but worked well. When I did my 82 C10 a couple years ago I bought a product called Noico on Amazon. I think it may be slightly thinner that Dynamat, but IMO it works just as well and costs 1/3 as much! It's also available in black. Be sure to use their roller to install it, and some HVAC foil tape at the edges and seams.

Also, no matter what the vendors say, these butyl/foil sound deadening products don't do much to keep exhaust pipe heat from coming through the floor. For that you will need true thermal insulation. I like a product made by Bonded Logic called "Ultra Touch". It is recycled denim strands woven together and backed by foil on one or two sides. Inexpensive and works great! Part numbers for a 4x6 roll are:

#11406 -- single side foil
#12406 -- double side foil

https://www.homedepot.com/p/UltraTou...1406/100656748

I didn't find the double sided version anywhere except at Sachse Rod Shop. Page 102 in their catalog.
http://sachserodshop.com/web_interior.pdf

You can probably find it if you spend more time searching than I did, possibly in Canada.

01-24-2021, 12:55 PM	#12
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,425	Re: Exhaust decision, opinions? I used Dynamat Xtreme on a 55 Chevy car many years ago. It was very expensive but worked well. When I did my 82 C10 a couple years ago I bought a product called Noico on Amazon. I think it may be slightly thinner that Dynamat, but IMO it works just as well and costs 1/3 as much! It's also available in black. Be sure to use their roller to install it, and some HVAC foil tape at the edges and seams. Also, no matter what the vendors say, these butyl/foil sound deadening products don't do much to keep exhaust pipe heat from coming through the floor. For that you will need true thermal insulation. I like a product made by Bonded Logic called "Ultra Touch". It is recycled denim strands woven together and backed by foil on one or two sides. Inexpensive and works great! Part numbers for a 4x6 roll are: #11406 -- single side foil #12406 -- double side foil https://www.homedepot.com/p/UltraTou...1406/100656748 I didn't find the double sided version anywhere except at Sachse Rod Shop. Page 102 in their catalog. http://sachserodshop.com/web_interior.pdf You can probably find it if you spend more time searching than I did, possibly in Canada. __________________ Mike 1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! Last edited by MikeB; 01-24-2021 at 03:50 PM.