Spray on bed liner for deadener?

[greatwhite2006 10+ year member]

I'm looking mainly to mass load my trunk lid, it rattles really bad when it's closed. Do you think it would work fine? How do you think it would compare to conventional sound deadener?

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[Flipx99 5,000+ posts]

It does not have the mass that deadener does.

 

[greatwhite2006 10+ year member]

Even if i put 2-3 cans on it?

 

[BLD 25 10+ year member]

try the undercoating stuff instead.

 

[greatwhite2006 10+ year member]

try the undercoating stuff instead.

Yeah, I tried that but it was still too goopy even after a week. and if you rubbed it, some of it came off.

 

[Flipx99 5,000+ posts]

They have spray on deadener such as spectrum from specond skin.

 

[rtillaree 10+ year member]

the spray on undercoating i use from duplicolor worked great on my wheel wells and as well has the back panel of my trunk, it hardened up nicely and filled the gaps i couldn't get otherwise...spectrum spray is good, but it has its weaknesses, in my application at least, i ended up putting a lot of it on before i noticed it working...so if you put it on thick, it works great...

 

[Anthony Collova 10+ year member]

Adding mass to a resonating panel is a terribly inefficient way to treat vibrations.

Go find a truck with a bed liner spray in it and tap on the sheet metal. It will still resonate.

Your best bet is to go with a product that is specifically designed to kill vibrations.

There are a few great dampers out there that are elastomeric.

They will reduce vibrations in 2 ways

1. adding mass lowers the resonant frequency of the metal, making it less audible tot he human ear.

2. Elastomers convert the vibrations in to barely detectable heat. This conversion of energy can be nearly 10 times more efficient than simply adding mass.

Hope that makes sense.

ANT

second skin

 

[germanyt 10+ year member]

I know I'll get flamed but eD makes a decent roll on deadener that has show much more success than the mat that they make. It also comes in that cool as blue color. It also comes at a pretty decent price.

 

[Megalomaniac 5,000+ posts]

I know I'll get flamed but eD makes a decent roll on deadener that has show much more success than the mat that they make. It also comes in that cool as blue color. It also comes at a pretty decent price.

i have that all over my trunk. i discovered SLudge is better though now

 

[Anthony Collova 10+ year member]

Yeah.. I like sludge better too!

ANT

second skin