Spayed on more undercoating...waste of time!

nogoodname · 04-12-2009, 08:30 PM

to me, undercoating is not for sound isolation but it is for rust protection from salty roads and rocks chipping away at the metal....that alone is worth it !!

patburk · 05-20-2009, 04:15 PM

click on this link and watch the Jay Leno videos in the bottom right corner of the page.
The Official Dynamat Website
please post your results......thanks

SoCal 370Z · 05-20-2009, 04:27 PM

Quote:

Originally Posted by patburk

click on this link and watch the Jay Leno videos in the bottom right corner of the page.
The Official Dynamat Website
please post your results......thanks

The Dynamat route is both expensive and labor intensive. Let alone taking the your Z apart to do it. Do you work for Dynamat?

semtex · 05-20-2009, 04:42 PM

Quote:

Originally Posted by SoCal 370Z

The Dynamat route is both expensive and labor intensive. Let alone taking the your Z apart to do it. Do you work for Dynamat?

This is the third time I've seen him post the exact same blurb. And he doesn't even know how to put a real hyperlink in. Check out the attached screenshot.

rackley · 05-20-2009, 06:01 PM

Quote:

Originally Posted by ChrisSlicks

I think the spray on stuff is mostly to stop the panel from vibrating (deadening), don't think it has huge insulating properties.

I think Dynomat on the interior would work better, it's really heavy and dense and a good sound insulator. It will hurt performance slightly though if you go adding 100 pounds of it.

I just did it this weekend. I took everything out of the trunk and covered as much metal as possible (including the wheel humps, front and back) and didn't notice any difference at all.

Most of the sound insulation actually seems to come from just putting the mats in the back.

The next thing I was thinking would probably be easier and better is just more of the 3/4" or so thick insulation/matting that seems to be under the passenger compartment. It may not PREVENT noise, but it may do a good job of absorbing some of it...

nogoodname · 05-20-2009, 06:51 PM

Quote:

Originally Posted by semtex

This is the third time I've seen him post the exact same blurb. And he doesn't even know how to put a real hyperlink in. Check out the attached screenshot.

lol....thats funny

click on this link and watch the Jay Leno videos in the bottom right corner of the page.
The Official Dynamat Website
please post your results......thanks

semtex · 05-20-2009, 07:08 PM

Quote:

Originally Posted by nogoodname007

lol....thats funny

click on this link and watch the Jay Leno videos in the bottom right corner of the page.
The Official Dynamat Website
please post your results......thanks

You should make that your new sig.

Ronin06 · 05-30-2014, 10:25 PM

I'll be undercoating mine not for the noise, but because this will be a daily driver in Iowa.

Baer383 · 05-31-2014, 12:30 PM

HOLY 4 year revive from the dead

05-20-2009, 04:15 PM	#17 (permalink)
patburk Base Member Join Date: May 2009 Location: san diego Posts: 3 Drives: Nissan 350Z CS M6 Rep Power: 16	this stuff is made for noise.... click on this link and watch the Jay Leno videos in the bottom right corner of the page. The Official Dynamat Website please post your results......thanks

05-31-2014, 12:30 PM	#24 (permalink)
Baer383 A True Z Fanatic Join Date: Aug 2010 Location: Lawrenceville,Ga Posts: 4,293 Drives: My foot up your azz Rep Power: 30	HOLY 4 year revive from the dead __________________ 2013 ZL1 754 rwhp 747 rwtq

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04-12-2009, 08:30 PM	#16 (permalink)
nogoodname Lifetime Premium Join Date: Nov 2008 Location: Montreal Posts: 22,357 Drives: E46 M3 Rep Power: 1765	to me, undercoating is not for sound isolation but it is for rust protection from salty roads and rocks chipping away at the metal....that alone is worth it !!

05-30-2014, 10:25 PM	#23 (permalink)
Ronin06 Base Member Join Date: Mar 2014 Location: Urbandale, Iowa Posts: 87 Drives: 14 silver sport 370Z Rep Power: 11	I'll be undercoating mine not for the noise, but because this will be a daily driver in Iowa.