Need help sealing off trunk.

[Juice0723 10+ year member]

I was wondering if I had to seal the rear deck off as well. Because there are holes for the trunk to open like hinges are there. And there are holes for the seat belts. This is all on the rear deck.

So how do I properly do this? I already have the spaces around the box sealed off.

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[dappa5 10+ year member]

use dyna mat or a like product

 

[peas247 10+ year member]

sound deadner, great stuff expanding foam, and duct tape

 

[Juice0723 10+ year member]

alright thanks for the info so far. I don't have access to sound deadener in my town. So I guess I'll use duct tape. I used expanding foam around the box.

I don't want to use it on the rear deck though because it may mess up the seat belts or the trunk opening.

 

[dappa5 10+ year member]

back tape area off then foam it carefully then cut away excess foam (carefully)

 

[Juice0723 10+ year member]

I just duct taped every hole I could find in the rear deck. Does the tape actually stop the bass from getting into the trunk? I'm hoping this is worth it.

 

[dappa5 10+ year member]

it helps to slow tha air flow

 

[SPL KID 10+ year member]

i would leave the rear deck open would keep pressure higher and duck tape won't work properly depending on the amount of pressure your generating.

 

[shakinghorizons]

alright thanks for the info so far. I don't have access to sound deadener in my town. So I guess I'll use duct tape. I used expanding foam around the box.
I don't want to use it on the rear deck though because it may mess up the seat belts or the trunk opening.

Very true, nothing in my trunk latches anymore its all messed up with great stuff. I will never do it again, Sealing the box off yes, make sure you tape everything off first so it don't directly bond to anything like carpet or plastic, its really messy when applied, and a super pain to get off your fingers. Be careful

 

[shakinghorizons]

A few rolls of duct tape was seriously my best investment in car audio, duct taped it and fiberglassed over it. at least a 2db gain after sealing it off just with tape.

 

[DEdwards 10+ year member]

Just wondering.......why are you sealing off your trunk?

 

[chase007 10+ year member]

Just wondering.......why are you sealing off your trunk?

To keep Sound Inside?

 

[DEdwards 10+ year member]

To keep Sound Inside?

No I am wondering if he is using an IB configuration...

 

[chase007 10+ year member]

No I am wondering if he is using an IB configuration...

I doubt it he is prob just trying to gain a db or two, and keep some sound inside.

 

[shakinghorizons]

Think about it, a trunk rattle/flexing is lost energy in the form of sound that could rather be used in the cab.