Author Topic: Looking For Sound and Heat Shield For Cab Floor  (Read 2568 times)

Offline Mike81K10

  • Site Supporters
  • Junior Member
  • ******
  • Posts: 878
Looking For Sound and Heat Shield For Cab Floor
« on: July 09, 2020, 03:12:24 PM »
Was thinking about doing a shield on my finished cab floor for heat and sound, also to help with my Vintage AC system I am installing. Would really like to get some suggestions on the better quality shield. Was thinking about the stick on foil type. I had a thick fiber mat under my carpet prior to my rebuild. Actually still have it stored away. The truck (K10) originally came with a black rubber mat and I had changed it to carpet some time ago. Was also thinking about going back to the Rubber flooring instead of the carpet. Any suggestions!

Was also thinking about installing an electric fuel pump to replace the mechanical. I am running OEM duel tanks and the pump would be on the engine side of the selector valve. Had thought about the Holly Red Pump PART# 12-801-1. Will have to cut a small length of my stainless steel fuel line to fit by the selector valve.
« Last Edit: July 14, 2020, 04:27:03 PM by Mike81K10 »
"Tell me and I forget. Teach me and I remember. Involve me and I learn." -Benjamin Franklin

Offline JohnnyPopper

  • Senior Member
  • ****
  • Posts: 2526
  • Old Goof
Re: Looking For Sound and Heat Shield For Cab Floor
« Reply #1 on: July 22, 2020, 12:37:05 PM »
Hush mat or Dyna mat, (same?) is not the way to go, I used it to treat a VW DOKA I restored, and it fades in effectiveness by drying up over time. Huge difference when first installed, no so much later on.

Second Skin is superior and will be my go to from now on.

https://www.secondskinaudio.com/sound-deadening/how-to-install-sound-deadening-car-faq/

Still have some Hush come to think of it... :-[
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline ehjorten

  • Senior Member
  • ****
  • Posts: 1198
Re: Looking For Sound and Heat Shield For Cab Floor
« Reply #2 on: July 23, 2020, 10:17:44 AM »
Both Hush mat and Dyna mat are butyl rubber based products, so they shouldn't dry-out and lose effectiveness like asphalt-based products, but Hush mat is much thinner than Dyna mat which makes is less effective on lower frequencies, plus Hush mat's adhesive bond is not as good as Dyna mat, so it can become loose or fall off, which makes it lose its effectiveness.
-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline Mike81K10

  • Site Supporters
  • Junior Member
  • ******
  • Posts: 878
Re: Looking For Sound and Heat Shield For Cab Floor
« Reply #3 on: July 23, 2020, 09:48:28 PM »
Thanks for the comments! Took a look at the second skin. A little high priced, but seems good. Will also check out Dyna mat and any other options tht someone else may have.
"Tell me and I forget. Teach me and I remember. Involve me and I learn." -Benjamin Franklin

Offline JohnnyPopper

  • Senior Member
  • ****
  • Posts: 2526
  • Old Goof
Re: Looking For Sound and Heat Shield For Cab Floor
« Reply #4 on: July 24, 2020, 01:36:37 PM »
Come to think of it, it was Dyna mat.

Can't say why but it dried out and cracked over some years.

Maybe when it gets hot?  :-\
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline Curt80

  • Newbie
  • Posts: 10
  • Newbie
Re: Looking For Sound and Heat Shield For Cab Floor
« Reply #5 on: July 24, 2020, 01:53:17 PM »
I just did the complete inside cab (doors and all) on my 49 F1 this past winter, with a product I got off amazon called Kilmat.  I was hesitant to go with the off brand but am happy with the results.  I did 2x 50 mil layers of the butyl and then a top layer of 80 mil noico closed cell foam (also amazon) with the intent of insulating for my AC.   I have dual flowmaster 40's on a sbc in the truck and I went from not being able to have a conversation in the cab to very tolerable.  I'd used the dynamat before and found it a good product but this kilmat was about 1/3 the price for the complete project.  The carpet sat very nice when finished. 
« Last Edit: July 24, 2020, 03:03:57 PM by Curt80 »

Offline Mike81K10

  • Site Supporters
  • Junior Member
  • ******
  • Posts: 878
Re: Looking For Sound and Heat Shield For Cab Floor
« Reply #6 on: July 24, 2020, 09:34:35 PM »
Thanks for the info. I will have to decide in about 30 days which way to go.
"Tell me and I forget. Teach me and I remember. Involve me and I learn." -Benjamin Franklin