Dynamat outside of car?

My_third_Z · 05-03-2012, 05:47 AM

I was under the car this past weekend, and noticed plenty of exposed metal. I'm going to begin doing all the sound deadening this weekend and was wondering how well dynamat might hold up under the car. Anyone ever try this? The more I can put on the better, but I don't want to waste the stuff by it peeling off the first time I drive in the rain. Thanks.

TreeSemdyZee · 05-03-2012, 06:01 AM

I doubt very seriously if it would hold up on the exterior. Heat, gravel, etc. would probably destroy it quickly. You're better off with a spray-on deadener.

bigaudiofanat · 05-03-2012, 08:53 AM

I would use these stuff instead of dynamat. I do not think it would hold up as well.

Dupli-Color :: Undercoating

zakimak · 05-03-2012, 09:12 AM

Quote:

Originally Posted by My_third_Z

I was under the car this past weekend, and noticed plenty of exposed metal. I'm going to begin doing all the sound deadening this weekend and was wondering how well dynamat might hold up under the car. Anyone ever try this? The more I can put on the better, but I don't want to waste the stuff by it peeling off the first time I drive in the rain. Thanks.

Don't do that unless you can guarantee that you won't trap any moisture. Spray bedliners or undercoating would be better alternative since it conforms to the exposed metal and unlikely to create pockets where moisture can accumulate forming water puddles with no means for drainage.

37Z · 05-03-2012, 11:44 AM

Look into Lizardskin available from Eastwood (Eastwood - Auto Body Repair Tools | MIG Welder | TIG Welder | Plasma Cutter | Auto Body Supplies & Accessories) or
Secondskin's Spectrum Sluge (www.secondskinauto.com).

Lizardskin is spray-on while Sprectrum sluge can be either spray or brushed on.

Both products are designed for exterior use to deaden noise.

kellyefields · 05-03-2012, 11:48 AM

the lizzard skin is a great product especially if used in conjuction with their heat skin as well. it reduced the heat on the tunnel that I could feel. a lift is the best way to go and be sure you have a compressor big enough to flow the amount of air you need to spray this stuff because it is thick.

Armhunter · 05-03-2012, 12:52 PM

i love the road noise in my Nismo.. I say bring it!

Baconboy · 05-03-2012, 03:27 PM

Yeah, the second skin spectrum or sludge is the one you want for that. Don't do the sheets under there, it's not what they are made for. I suspect it would work is you did a really good job cleaning, foil-taped around the edges, and drove in only nice weather.

I did Dynamat in the trunk area just this week. Good luck, take your time. It's easy.

My_third_Z · 05-03-2012, 05:57 PM

Thanks for the input guys, I'll check out your recommendations.

Quote:

Originally Posted by Armhunter

i love the road noise in my Nismo.. I say bring it!

I liked mine too, until I was about to install a several thousand dollar audio system.

Armhunter · 05-05-2012, 10:55 AM

Quote:

Originally Posted by My_third_Z

Thanks for the input guys, I'll check out your recommendations.

I liked mine too, until I was about to install a several thousand dollar audio system.

Play it louder!

Let me know how it works out though.. I am going to upgrade my sound system too.. I would think that the audio would def the road noise.

Compdoc777 · 05-05-2012, 11:06 AM

Lizard skin is a heat and sound dreading material you spray on. That would be the best and lightest. I am going to use it.

Che ck it here http://www.lizardskin.com/

37Z · 05-06-2012, 01:33 PM

Quote:

Originally Posted by Compdoc777

Lizard skin is a heat and sound dreading material you spray on. That would be the best and lightest. I am going to use it.

Check it here LizardSkin Spray-On Insulation : Lizardskin

Let us know if this product works!

05-03-2012, 05:47 AM	#1 (permalink)
My_third_Z Enthusiast Member Join Date: Feb 2011 Location: Charleston,SC Posts: 312 Drives: Blue 09 370z Rep Power: 14	Dynamat outside of car? I was under the car this past weekend, and noticed plenty of exposed metal. I'm going to begin doing all the sound deadening this weekend and was wondering how well dynamat might hold up under the car. Anyone ever try this? The more I can put on the better, but I don't want to waste the stuff by it peeling off the first time I drive in the rain. Thanks.

05-03-2012, 08:53 AM	#3 (permalink)
bigaudiofanat Car Audio Installer Join Date: Jun 2009 Location: Magnolia DE Posts: 8,342 Drives: 2012 Infiniti G37x Rep Power: 852	I would use these stuff instead of dynamat. I do not think it would hold up as well. Dupli-Color :: Undercoating __________________ Need help with car audio or electronics? Let me know!! Need Help Let Me Know Direct email address reimermatt@gmail.com Owner of: Dynamic Mobile Audio Follow me below https://www.facebook.com/Dynamicmobileaudio/

05-03-2012, 11:44 AM	#5 (permalink)
37Z Enthusiast Member Join Date: Jun 2009 Location: Florida Posts: 476 Drives: 370Z MB 6M -sold Rep Power: 262	Exterior Sound deadining Look into Lizardskin available from Eastwood (Eastwood - Auto Body Repair Tools \| MIG Welder \| TIG Welder \| Plasma Cutter \| Auto Body Supplies & Accessories) or Secondskin's Spectrum Sluge (www.secondskinauto.com). Lizardskin is spray-on while Sprectrum sluge can be either spray or brushed on. Both products are designed for exterior use to deaden noise.

05-03-2012, 11:48 AM	#6 (permalink)
kellyefields A True Z Fanatic Join Date: Nov 2010 Location: Lexington Ky #BBN Age: 47 Posts: 1,149 Drives: Supercharged Rep Power: 16	the lizzard skin is a great product especially if used in conjuction with their heat skin as well. it reduced the heat on the tunnel that I could feel. a lift is the best way to go and be sure you have a compressor big enough to flow the amount of air you need to spray this stuff because it is thick. __________________ MY 2009 SC BUILD.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Use Dynamat or not	BobQ	Audio & Video	32	06-02-2015 01:01 PM
Dynamat?	Pelican170	Exterior & Interior	18	12-14-2011 04:41 PM
To Dynamat or Not	OldGuy	Intake/Exhaust	14	03-20-2011 09:21 PM
After Dynamat what's next?	Guard Dad	Audio & Video	7	11-02-2010 02:49 AM
how much dynamat?	Liquid_G	Audio & Video	12	09-15-2009 09:47 PM

05-03-2012, 06:01 AM	#2 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 59 Posts: 4,880 Drives: '09 370 & ‘14 Juke Rep Power: 27408	I doubt very seriously if it would hold up on the exterior. Heat, gravel, etc. would probably destroy it quickly. You're better off with a spray-on deadener.

05-03-2012, 12:52 PM	#7 (permalink)
Armhunter Enthusiast Member Join Date: Mar 2012 Location: bakersfield, CA Posts: 338 Drives: 12 Nissan 370z Nismo Rep Power: 13	i love the road noise in my Nismo.. I say bring it!

05-03-2012, 03:27 PM	#8 (permalink)
Baconboy Base Member Join Date: Sep 2011 Location: Merrimack Valley, MA Posts: 121 Drives: 40th '71chev '34ford Rep Power: 13	Yeah, the second skin spectrum or sludge is the one you want for that. Don't do the sheets under there, it's not what they are made for. I suspect it would work is you did a really good job cleaning, foil-taped around the edges, and drove in only nice weather. I did Dynamat in the trunk area just this week. Good luck, take your time. It's easy.

05-05-2012, 11:06 AM	#11 (permalink)
Compdoc777 Enthusiast Member Join Date: Dec 2011 Location: Cypress Posts: 277 Drives: 2011 Nismo #4 MB Rep Power: 13	Lizard skin is a heat and sound dreading material you spray on. That would be the best and lightest. I am going to use it. Che ck it here http://www.lizardskin.com/