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#1 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Dynamat Tips Please
Hi - Tonight Im pulling my seat and carpet and putting in dynamat.
Those of you that have done this already I have some observations and question. Observations I have made: - I should paint the part that extends past the carpet onto the firewall flat black. - I should trim the mat out around where the seat frame bolts in to make sure it bolts down securely and is solid to the floor. - I plan on cleaning the floor well and using alcohol as prep for surface. Questions i have: - Should I put it behind my speaker kick panels? - Should I put it over the gas tank? I don't plan on pulling the tank to do the rear of the cab. - I did the doors (1 strip all the way across inside the door and covered all of the holes behind the door panel) should I also cover the metal behind the door panel with one piece of mat? Anything else I should know leveraging your experience?
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#2 |
Registered User
Join Date: May 2014
Location: Matamoras, PA
Posts: 397
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Re: Dynamat Tips Please
Yes to all of that except on the gas tank, it won't help you there. You'll just be wasting expensive material. I'd pull the tank to do the rest if I were you.
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#3 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,117
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Re: Dynamat Tips Please
On any panel that is vertical or overhead I apply a coat of 3M heavy duty spray adhesive to be sure it won't fall off over time. Rust may never sleep, but gravity never blinks. Good advice about doing the panel behind the gas tank. Even if you can just unbolt the tank and tip it forward you should be able to get a good strip across the back panel to cut down its transmitted noise..
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#4 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Dynamat Tips Please
Good info.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#5 |
Registered User
Join Date: Apr 2016
Location: Portland, Or
Posts: 387
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Re: Dynamat Tips Please
Hi Damian,
Which Dynamat did you buy? I want to do this to my truck to. Thanks |
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#6 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Dynamat Tips Please
I have Fat Mat, so much cheaper and does the same job. People say it stinks and melts, but I put it on my generator enclosure on my toy hauler and have not had one issue.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#7 | |||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,940
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Re: Dynamat Tips Please
Quote:
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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#8 |
Registered User
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,090
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Re: Dynamat Tips Please
Sweet!
How much material did you end up using? thanks, -klb
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67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold |
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#9 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Dynamat Tips Please
The whole roll. I don't remember what the amount was. But i did use a couple good sized pieces on my toy hauler generator enclosure before doing the truck.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#10 |
Registered User
Join Date: Mar 2017
Location: Etowah, TN
Posts: 210
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Re: Dynamat Tips Please
Pulling the Tank is way easier then You think . . , If You have left Overs I'll take them ..
I scored some Mat - Not sure what it is from inside a Tractor Trailer 15 yrs. ago .. It's very heavy and .100 thick approx 2 ft x 24 ft. & 2 ft x 12 ft. ( Gas & Oil don't seem to faze it ) 3M Glue is on the List . |
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#11 |
Registered User
Join Date: Jun 2015
Location: Melbourne, Australia
Posts: 231
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Re: Dynamat Tips Please
When I did my truck I also applied it to the gas tank and it cut down on the noise of the fuel sloshing around substantially.
So from my point of view if you have left over material it was well worth covering the tank.
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John 69 c20, 396, th400, dana60, ps, ac |
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#12 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Dynamat Tips Please
I got the material down, now to re wire speakers and amp and put everything back in.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#13 |
Registered User
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,090
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Re: Dynamat Tips Please
That looks great. Any tips you can provide now after having just completed this?
What did you use to press the material down or roll it down? Thanks, -klb
__________________
67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold |
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#14 |
Senior Member
![]() Join Date: Jun 2009
Location: Belews Creek , NC
Posts: 4,220
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Re: Dynamat Tips Please
Looks great !!!
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Larry It is easily overlooked that what is now called vintage was once brand new. "Project 68" paypal.me/ldgrant |
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#15 |
Senior Member
![]() Join Date: Jul 2015
Location: Fairfax, Missouri
Posts: 1,049
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Re: Dynamat Tips Please
Hope I don't get slammed too hard hear, but there's a roofing product that is made exactly like all the above names. You can buy it at lowes real cheep. The rolls I bought were 50ft long by 8in or so. My friend had a piece of dynamat that a rep give him and we compared them and could not see any difference but the stuff from lowes was a little bit thicker and had a better aluminum backing. The only cons of this was it did smell a little bit like tar for a short time.but by the time my car was finished and was driving it you never did smell it agian. I did put the factory jute padding under my carpet also. Just my 2 cents. A roll was like 12.00 if my memory serves me right.
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#16 |
Registered User
Join Date: Jun 2015
Location: Melbourne, Australia
Posts: 231
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Re: Dynamat Tips Please
Nice work
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John 69 c20, 396, th400, dana60, ps, ac |
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#17 | |
Registered User
Join Date: May 2017
Location: graham, WA
Posts: 33
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Re: Dynamat Tips Please
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#18 | |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Dynamat Tips Please
Quote:
I actually used a metal screen welt installation tool. Its what i had and it worked great. I prepped the floor with alcohol and then filled any gaps in material with smaller pieces. I then covered any exposed seams with aluminum duct work tape. I saw some rust so I treated it with POR before laying the material. Ill be laying wiring and carpet down tonight. I figured after getting the carpet where it belongs and wring ran, i'll spray adhesive down along the front where your feet go to keep it in place. I ran out of material so I only went over the tank and not behind it. Just that one piece over the tank made a difference. Ill report back after driving it. The carpet barely has any insulation, but the cab stayed cool before. My only thought when doing this was "man, when I do my 4 on the floor conversion, this will be ugly.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#19 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Dynamat Tips Please
I did my doors a few weeks before. My only thought is that i should place a piece on the metal between the door handle and window crank.
Thoughts?
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#20 |
Registered User
Join Date: Mar 2017
Location: Etowah, TN
Posts: 210
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Re: Dynamat Tips Please
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#21 |
Registered User
Join Date: Jul 2011
Location: strausstown pa
Posts: 3,394
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Re: Dynamat Tips Please
The screen welt roller works good for those tight grooves.
I also used my "comma" dolly too help flatten out the wrinkles. I lined the wall behind and the floor below the gas tank and saved a peice too put on the inside of my gas tank cardboard for when that gets installed. I also used a jute padding under my rubber floor mat, tried hard too keep all of it hidden. Really like the way it dont sound hollow or canny at all.
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81 camaro 355 4/spd 342 posi my first love ![]() 67 swb step 454/4spd ott 373 posi 4/7 drop. 2000 s10 zr2 little blue truck that never gets stuck. '74 heald super bronc vt8. tecumseh powered moon rover. |
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#22 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Dynamat Tips Please
My door parts used to rattle in my 65 Mustang so when I dynomatted it I wrapped a piece around the door latch rod and window lock rod. The extra "weight" of the material keeps them from rattling, along with new nylon snap connector thingys.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#23 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Dynamat Tips Please
I must say it is an amazing difference.
- You can talk to a passenger without shouting. - I can talk on the stereos bluetooth without shouting (mic is on the steering column). Along with replacing the two 6x9 speakers under the seat with a Tahoe Bose Subwoofer in the jack corner, I can enjoy music without turning it up all the way. I have the metal door panels and I put material on the back of those as well. What a difference.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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