MLV or deadner....both?

[blazeplacid 10+ year member]

I have a G35 Sedan and I have some rear deck rattle.

Which would be the best way to quiet this down?

My rear deck is only about 4-5 sq ft if that so either would be cheap enough.

Click to read more...

 

[Fiendstolemyamp 10+ year member]

deadener

 

[Buck 5,000+ posts]

If it's that small of an area, I would use both.

 

[tommyk90 5,000+ posts]

If it's that small of an area, I would use both.

This.

The deadener will reduce vibrations and the CCF (this is what you should use, not MLV) will keep the panel from rattling/hitting anything.

 

[Rudy 10+ year member]

This.
The deadener will reduce vibrations and the CCF (this is what you should use, not MLV) will keep the panel from rattling/hitting anything.

Absolutely - especially if you have a sub in the trunk. MLV blocks sound.

 

[blazeplacid 10+ year member]

I looked this morning and it looks like the metal is flexing a bit and of course the plastic/carpet panel is jumping everywhere =)

thanks for the info

 

[TheUnderFighter 10+ year member]

Yup, like they said, use both bro. On such a small application. For me, the deadener made a WORLD of a difference, but the CCF will probably seal the deal.

 

[tommyk90 5,000+ posts]

And you can buy said products at Sound Deadener Showdown - Your Source for Sound Deadening Products and Information

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[Kangaroux 5,000+ posts]

Can someone explain what exactly MLV and CCF is...

 

[mast240 10+ year member]

MLV- mass load vynil barrier... blocks sound

CCF- closed cell foam... helps with vibrations and rattles

 

[Kangaroux 5,000+ posts]

Is MLV what you use to block road noise and CCF helps against various panel rattling?

 

[tommyk90 5,000+ posts]

Is MLV what you use to block road noise and CCF helps against various panel rattling?

MLV in conjunction with CCF helps block and absorb sound (like road noise).

You can use MLV by itself, but it is really designed to be used with CCF. MUCH better results.

CCF by itself is used to reduce panel rattling.

 

[Kangaroux 5,000+ posts]

MLV in conjunction with CCF helps block and absorb sound (like road noise).
You can use MLV by itself, but it is really designed to be used with CCF. MUCH better results.

CCF by itself is used to reduce panel rattling.

So you put a layer of deadner around your car or what not, and then put a sheet of MLV + CCF on the floor to prevent road noise?

 

[tommyk90 5,000+ posts]

So you put a layer of deadner around your car or what not, and then put a sheet of MLV + CCF on the floor to prevent road noise?

You don't need to layer your entire car with deadener, just in strategic spots to reduce panel resonance.

Then yes, a layer of CCF and MLV to block/absorb road noise.

You can see some pics of the process in my build thread.

http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/512408-tommy-ks-daily-driver-build.html