FREE! GTMat Automotive Sound Deadener

Nut_N_Much · 08-18-2012, 06:30 PM

This is what I used to sound deaden my Sophie

. I ordered off ebay 50 Sq Ft, it came in the mail with in 5 days. Came with the roller and some plastic tools to smooth it all out. I laid it from the Fire Wall all the way back to the trunk. Also did the roof, worked awesome. I have ART Test Pipes on Fast Intentions Carbon Fiber Exhaust cans (Loud inside cab)... After deadening I could talk on the blue tooth with out yelling.

The 50 foot roll was around 25 pounds. I put it on a scale before laying it out. My trunk had been done already by someone else but there were lots of gaps, and surface areas not covered. I laid G-Matt over it and used sound deadening spray to get in areas that are hard to reach. Makes a big difference. Once I finished I went over it all with a heat gun, made it more pliable and formed around tight corners and difficult areas.

Thanks G-Matt, if you come up with any new stuff, I'll test it for you !!!!

Nut_N_Much Journal

PM me if you have question..

Install Pics as requested: Feel free to cruise my Albums.

GTMat · 08-19-2012, 01:57 PM

Quote:

Originally Posted by Nut_N_Much

This is what I used to sound deaden my Sophie

. I ordered off ebay 50 Sq Ft, it came in the mail with in 5 days. Came with the roller and some plastic tools to smooth it all out. I laid it from the Fire Wall all the way back to the trunk. Also did the roof, worked awesome. I have ART Test Pipes on Fast Intentions Carbon Fiber Exhaust cans (Loud inside cab)... After deadening I could talk on the blue tooth with out yelling.

The 50 foot roll was around 25 pounds. I put it on a scale before laying it out. My trunk had been done already by someone else but there were lots of gaps, and surface areas not covered. I laid G-Matt over it and used sound deadening spray to get in areas that are hard to reach. Makes a big difference. Once I finished I went over it all with a heat gun, made it more pliable and formed around tight corners and difficult areas.

Thanks G-Matt, if you come up with any new stuff, I'll test it for you !!!!

Nut_N_Much Journal

PM me if you have question..

Wow, it looks awesome in your Z! Glad we could help you! Thanks to the great response we have received so far, any new products will be open to testing by you guys.

We would appreciate if all reviews and install pics could also be posted on our Amazon listings found here: GT Sound Control @ Amazon.com:

We are trying to build up the brand name.

Still offering the free samples if anyone else wants to try it out!

GTMat · 08-20-2012, 05:14 PM

Any updated reviews out there?

I heard a rumor that we might have some new products available for testing.

vermithrax · 08-20-2012, 05:49 PM

Still working on getting mine installed. I will post a review and photos, and a review on amazon as soon as I get the time to get it put in.

Huckleberry · 08-20-2012, 05:57 PM

Quote:

Originally Posted by GTMat

Any updated reviews out there?

I heard a rumor that we might have some new products available for testing.

what new products?

GTMat · 08-20-2012, 06:03 PM

Quote:

Originally Posted by Huckleberry

what new products?

All I heard was "liquid".

I'll be sure to keep you guys updated.

Huckleberry · 08-20-2012, 06:56 PM

is there a waiting list?

bigdog1250 · 08-20-2012, 07:56 PM

FYI, I installed the 10 sq. ft. sample this past weekend and shot some video. Not sure when I'll have it edited and ready to post but it should be sometime mid week.

Results:

- Installed in the trunk
- Noticeably quieter at idle
- Really easy to install and adhere
- Sample came in just a few days, great customer service!
Used an iPhone app as a basis to measure the decibel levels before and after. At idle before = 56, after = 52

The main reason I wanted to test the deadening material was to reduce the drone created by my F.I. exhaust at about 70mph (2800rpm) on the freeway. When you step on the gas a bit there is a tone that reverberates in the cabin and is kinda annoying. While I don't mind it much, my passengers do.

@70 mph before the install = 77-82 decibels, after = 77-78.

So there was a measurable difference, however it wasn't really noticeable to me, at least not while on the freeway. I'm sure if I installed some more in the roof/hatch area, it would greatly help.

All video and measurements were taken on the same roads and measured multiple times, so it should be fairly accurate.

ericzmyers · 08-20-2012, 11:26 PM

i bought and installed 50 sqft. pulled the whole interior and got it done in a day.

- Product was easy to work with.

- roller was absolute garbage. Broke within and hour, too much with the man hands i guess. i bought a tool box caster and used that to roll a majority of the product flat.

- there has been a little odor in the car here and there but barely noticeable.

GREAT PRODUCT, WELL WORTH THE PRICE.

SEND ME MORE STICKERS!

thinking of buying a little bit more and doing the roof.

Cmike2780 · 08-21-2012, 10:01 AM

I installed the sample you guys sent over the weekend and didn't get a chance to drive the car until today. Since 10 sq.ft. isn't a whole lot to work with, I applied it to where I thought most of the noise was coming from, the rear wheel wells. 10 sq.ft. was enough to cover both sides, with a little left over. If you guys get just the sample to try it out, I suggest this area because you do reduce a noticable amount of road noise. It just about knocked out those little "ticking" noises hitting the wheel well when driving over not so clean road. It might just be me, but my exhaust also sounds "cleaner" since I'm not hearing as much road noise.

I'll definitely order more of this stuff in the future. I just need to set aside time to do it because it can be time consuming to install. Overall, the product does work, but there are other areas that need to be addressed.

I'll add some pics later.

GTMat · 08-21-2012, 11:35 AM

Quote:

Originally Posted by Huckleberry

is there a waiting list?

Not just yet, but we will definitely let you 370Z guys know about it once available!

Quote:

Originally Posted by bigdog1250

FYI, I installed the 10 sq. ft. sample this past weekend and shot some video. Not sure when I'll have it edited and ready to post but it should be sometime mid week.

Results:

- Installed in the trunk
- Noticeably quieter at idle
- Really easy to install and adhere
- Sample came in just a few days, great customer service!
Used an iPhone app as a basis to measure the decibel levels before and after. At idle before = 56, after = 52

The main reason I wanted to test the deadening material was to reduce the drone created by my F.I. exhaust at about 70mph (2800rpm) on the freeway. When you step on the gas a bit there is a tone that reverberates in the cabin and is kinda annoying. While I don't mind it much, my passengers do.

@70 mph before the install = 77-82 decibels, after = 77-78.

So there was a measurable difference, however it wasn't really noticeable to me, at least not while on the freeway. I'm sure if I installed some more in the roof/hatch area, it would greatly help.

All video and measurements were taken on the same roads and measured multiple times, so it should be fairly accurate.

Bigdog, thanks for the review! Glad to hear that product did help out even if only on a small scale. If you need to order more to complete the project, please let me know so that I can get you a discounted price.

Quote:

Originally Posted by ericzmyers

i bought and installed 50 sqft. pulled the whole interior and got it done in a day.

- Product was easy to work with.

- roller was absolute garbage. Broke within and hour, too much with the man hands i guess. i bought a tool box caster and used that to roll a majority of the product flat.

- there has been a little odor in the car here and there but barely noticeable.

GREAT PRODUCT, WELL WORTH THE PRICE.

SEND ME MORE STICKERS!

thinking of buying a little bit more and doing the roof.

Hi Eric, sorry about the roller issue! We are making the switch fairly soon to a more durable product.

If you need to make a purchase to complete your project, I can definitely work out a discount. And sure, we can send more stickers with it!

Quote:

Originally Posted by Cmike2780

I installed the sample you guys sent over the weekend and didn't get a chance to drive the car until today. Since 10 sq.ft. isn't a whole lot to work with, I applied it to where I thought most of the noise was coming from, the rear wheel wells. 10 sq.ft. was enough to cover both sides, with a little left over. If you guys get just the sample to try it out, I suggest this area because you do reduce a noticable amount of road noise. It just about knocked out those little "ticking" noises hitting the wheel well when driving over not so clean road. It might just be me, but my exhaust also sounds "cleaner" since I'm not hearing as much road noise.

I'll definitely order more of this stuff in the future. I just need to set aside time to do it because it can be time consuming to install. Overall, the product does work, but there are other areas that need to be addressed.

I'll add some pics later.

Hey Mike, we'd like to know about the other issues you had if possible. Thanks for giving us a shot and thanks for your review and upcoming pictures! Same as the guys above, contact me for discount prices when ready to order.

I'm sure I've posted it lots of times already but if any of you could provide your reviews on our Amazon listings, we would greatly appreciate it! Listings can be found here: GT Sound Control @ Amazon.com:

Cmike2780 · 08-21-2012, 11:56 AM

Quote:

Originally Posted by GTMat

Hey Mike, we'd like to know about the other issues you had if possible. Thanks for giving us a shot and thanks for your review and upcoming pictures! Same as the guys above, contact me for discount prices when ready to order.

Sorry, I meant other noise issues with the car, not your product.

GTMat · 08-21-2012, 12:22 PM

Quote:

Originally Posted by Cmike2780

Sorry, I meant other noise issues with the car, not your product.

Awesome then!

Huck · 08-22-2012, 11:17 AM

Yeah I can confirm those numbers, I used a studio db meter and on average it cut out 3db at idle, and 5-6db at 70mph. Not bad for just 10sqft of the 50mil. Image what it would sound like if you had 100sqft of the 80mil!

Sent from my iPizzle using magic and new-fangled science stuff

edub370 · 08-22-2012, 11:20 AM

i cant wait till i get a free minute to put mine in

08-18-2012, 06:30 PM	#61 (permalink)
Nut_N_Much A True Z Fanatic Join Date: Dec 2011 Location: Pensacola Florida Posts: 1,696 Drives: Awesome Car Rep Power: 26	This is what I used to sound deaden my Sophie. I ordered off ebay 50 Sq Ft, it came in the mail with in 5 days. Came with the roller and some plastic tools to smooth it all out. I laid it from the Fire Wall all the way back to the trunk. Also did the roof, worked awesome. I have ART Test Pipes on Fast Intentions Carbon Fiber Exhaust cans (Loud inside cab)... After deadening I could talk on the blue tooth with out yelling. The 50 foot roll was around 25 pounds. I put it on a scale before laying it out. My trunk had been done already by someone else but there were lots of gaps, and surface areas not covered. I laid G-Matt over it and used sound deadening spray to get in areas that are hard to reach. Makes a big difference. Once I finished I went over it all with a heat gun, made it more pliable and formed around tight corners and difficult areas. Thanks G-Matt, if you come up with any new stuff, I'll test it for you !!!! Nut_N_Much Journal PM me if you have question.. Install Pics as requested: Feel free to cruise my Albums. __________________ Did new cool science stuff to the car !!! http://www.the370z.com/mazoc/99606-z...y-14-17-a.html http://www.the370z.com/diy-section-d...-w-videos.html Last edited by Nut_N_Much; 08-19-2012 at 02:37 PM.

08-20-2012, 05:14 PM	#63 (permalink)
GTMat Enthusiast Member Join Date: Aug 2012 Location: Austin, TX Posts: 252 Drives: R8 / Z34 Rep Power: 13	Any updated reviews out there? I heard a rumor that we might have some new products available for testing. __________________ Tracie@GTSound \| 1-855-GTSOUND \| BUY GTMAT HERE!

08-20-2012, 06:56 PM	#67 (permalink)
Huckleberry Enthusiast Member Join Date: Apr 2012 Location: Los Angeles Age: 39 Posts: 410 Drives: Z Rep Power: 13	is there a waiting list? __________________

08-20-2012, 07:56 PM	#68 (permalink)
bigdog1250 Track Member Join Date: Nov 2008 Location: San Francisco Posts: 846 Drives: 991.2 GT3 Rep Power: 18	FYI, I installed the 10 sq. ft. sample this past weekend and shot some video. Not sure when I'll have it edited and ready to post but it should be sometime mid week. Results: - Installed in the trunk - Noticeably quieter at idle - Really easy to install and adhere - Sample came in just a few days, great customer service! Used an iPhone app as a basis to measure the decibel levels before and after. At idle before = 56, after = 52 The main reason I wanted to test the deadening material was to reduce the drone created by my F.I. exhaust at about 70mph (2800rpm) on the freeway. When you step on the gas a bit there is a tone that reverberates in the cabin and is kinda annoying. While I don't mind it much, my passengers do. @70 mph before the install = 77-82 decibels, after = 77-78. So there was a measurable difference, however it wasn't really noticeable to me, at least not while on the freeway. I'm sure if I installed some more in the roof/hatch area, it would greatly help. All video and measurements were taken on the same roads and measured multiple times, so it should be fairly accurate. __________________ 350z / 40th 370z / C6 Z06 / BMW M4 / V10 R8 / C7 Grand Spot / 997.1 GT3 / S2K / Camaro ZL1 / 718 GTS / 991.2 GT3 Last edited by bigdog1250; 08-20-2012 at 07:59 PM.

08-20-2012, 11:26 PM	#69 (permalink)
ericzmyers Base Member Join Date: Feb 2012 Location: port hueneme ca Posts: 70 Drives: 2011 Silver 370Z Rep Power: 13	i bought and installed 50 sqft. pulled the whole interior and got it done in a day. - Product was easy to work with. - roller was absolute garbage. Broke within and hour, too much with the man hands i guess. i bought a tool box caster and used that to roll a majority of the product flat. - there has been a little odor in the car here and there but barely noticeable. GREAT PRODUCT, WELL WORTH THE PRICE. SEND ME MORE STICKERS! thinking of buying a little bit more and doing the roof. __________________ Eric Z. Myers 2011 370Z, Silver, Sport, K&N short ram intake, Fast Intentions Exhaust, Pioneer AVIC, ORACLE Lighting LED Halo Kit, Tinted.

08-20-2012, 05:49 PM	#64 (permalink)
vermithrax Base Member Join Date: Apr 2012 Location: Houston Posts: 128 Drives: 11 370z/sport silver Rep Power: 13	Still working on getting mine installed. I will post a review and photos, and a review on amazon as soon as I get the time to get it put in.

08-21-2012, 10:01 AM	#70 (permalink)
Cmike2780 A True Z Fanatic Join Date: Jun 2010 Location: Long Island Posts: 5,059 Drives: slowwww Rep Power: 29	I installed the sample you guys sent over the weekend and didn't get a chance to drive the car until today. Since 10 sq.ft. isn't a whole lot to work with, I applied it to where I thought most of the noise was coming from, the rear wheel wells. 10 sq.ft. was enough to cover both sides, with a little left over. If you guys get just the sample to try it out, I suggest this area because you do reduce a noticable amount of road noise. It just about knocked out those little "ticking" noises hitting the wheel well when driving over not so clean road. It might just be me, but my exhaust also sounds "cleaner" since I'm not hearing as much road noise. I'll definitely order more of this stuff in the future. I just need to set aside time to do it because it can be time consuming to install. Overall, the product does work, but there are other areas that need to be addressed. I'll add some pics later. __________________ [09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R] [ArchitTEK Photography]

08-22-2012, 11:17 AM	#74 (permalink)
Huck A True Z Fanatic Join Date: Jan 2012 Location: Cocoa, Florida Age: 42 Posts: 5,075 Drives: Pantydropper machine Rep Power: 33	Yeah I can confirm those numbers, I used a studio db meter and on average it cut out 3db at idle, and 5-6db at 70mph. Not bad for just 10sqft of the 50mil. Image what it would sound like if you had 100sqft of the 80mil! Sent from my iPizzle using magic and new-fangled science stuff __________________ VLEDS \| Evo-R \| Moddiction \| CF Hood Struts \| F.I. CF CBE & LTH \| Stillen CAI \| NST Pulleys \| UpRev \| Z1 \| M7 \| Status \| Forgestar \| PSS \| Whiteline \| SPL \| SPC \| Kenwood \| Zenclosure \| Kicker \| Alpine Type R

08-22-2012, 11:20 AM	#75 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	i cant wait till i get a free minute to put mine in __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

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