Sound deadening trunk lid question

[ryanthie 10+ year member]

I know you should deaden as much as you can, but I have a little question about my car.

'03 Protege. It has spots in the trunk lid that are gapped for license plate lights and bolts.

Question is, should I deaden the metal inside the gap where I can reach, or will deadening over the holes be sufficient enough?

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[calebkhill 10+ year member]

Deaden in the gap

 

[ryanthie 10+ year member]

Deaden in the gap

Yeah I figured as much, just making sure so I don't waste deadener. Should I also put deadener over the hole as well or just on the metal?

 

[NIHL8ION]

Deaden everywhere you possibly can, trouble areas may require more than a single layer for the desired effect...

 

[Phoenix Risen 10+ year member]

what are your actual goals for this?

 

[calebkhill 10+ year member]

Yep. Deaden over holes. deaden everything.

 

[Chriszle 10+ year member]

You really only need to deaden the large flat surfaces. Round surfaces generally have enough strength as to not resonate anyways. 25-40 percent coverage is more than sufficient for the majority of systems.

 

[ryanthie 10+ year member]

what are your actual goals for this?

Getting rid of metal on metal rattle

You really only need to deaden the large flat surfaces. Round surfaces generally have enough strength as to not resonate anyways. 25-40 percent coverage is more than sufficient for the majority of systems.

Most of my lid has flat surfaces and the only rounded areas aren't too large really. Though knowing that will save me deadener to put in my doors though.. bottom of my trunk has quite a few rounded areas.

 

[Chriszle 10+ year member]

Try to use as little as possible on the flat surfaces. Test it out, and if you are not satisfied, you can always add more.

 

[Phoenix Risen 10+ year member]

chriszle is on point, and when trying to get rid of rattles foam tape and CCF can be far more useful than deadening.

 

[calebkhill 10+ year member]

Just deaden the whole lid, as much as you can, and be done with it.

Best to do it right the first time

 

[Phoenix Risen 10+ year member]

Just deaden the whole lid, as much as you can, and be done with it.Best to do it right the first time

thats not doing it right, thats just a a waste of materials, once you get past the 25-40 percent coverage range the added effects are so minimal that you will never be able to tell the difference.

 

[calebkhill 10+ year member]

thats not doing it right, thats just a a waste of materials, once you get past the 25-40 percent coverage range the added effects are so minimal that you will never be able to tell the difference.

That's inaccurate. 100% coverage always yields the best results.

 

[calebkhill 10+ year member]

@ryanthie; how many sq ft do you have

 

[phemps 10+ year member]

That's inaccurate. 100% coverage always yields the best results.

Lol.. its a shame that there is such good information on this topic but most are still too ignorant to actually learn how deadening works. Do not listen to this guy, instead research this site. Welcome to Sound Deadener Showdown | Sound Deadener Showdown