How much sound deadening material?

DrNumbers · 05-24-2018, 01:29 PM

I went full out tweaking on getting rid of rattles last year around this time. I have zero rattles in my car unless I really crank up my subs. I used Noico as it works very well and was cheaper than other brands. However, I think using a sound deadener is really only the first step.

I remember there being a plastic piece or wire on the passenger side near the rear wheel well that was causing a loud annoying rattle. I used some speaker gasket tape and wrapped it, which eliminated that issue. It is very annoying to actually get some foam back there though. It took me about 20 minutes to get it to sit right.

I also lined all the outside edges of my panels (where the panel meets the metal) with speaker gasket tape (i.e. closed cell foam). Like bigaudiofanat mentioned, throwing some rubber or foam around the clips also helps. To be more clear, I took off all the clips, wrapped them in foam, and shoved them back into the panel.

It's very difficult to eliminate all the rattles in the doors. I have about 50 sq ft (possibly more) in just my doors. I think each car will be different but another possible tip that may help is to loosen up your door handles while you have your panels off, and shove some closed cell foam underneath the door handle where it meets the metal. I was also getting a lot of rattles from that section when the woofers hit.

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05-24-2018, 01:29 PM	#11 (permalink)
DrNumbers Base Member Join Date: Mar 2017 Location: SoCal Posts: 71 Drives: 2016 370Z Rep Power: 10	I went full out tweaking on getting rid of rattles last year around this time. I have zero rattles in my car unless I really crank up my subs. I used Noico as it works very well and was cheaper than other brands. However, I think using a sound deadener is really only the first step. I remember there being a plastic piece or wire on the passenger side near the rear wheel well that was causing a loud annoying rattle. I used some speaker gasket tape and wrapped it, which eliminated that issue. It is very annoying to actually get some foam back there though. It took me about 20 minutes to get it to sit right. I also lined all the outside edges of my panels (where the panel meets the metal) with speaker gasket tape (i.e. closed cell foam). Like bigaudiofanat mentioned, throwing some rubber or foam around the clips also helps. To be more clear, I took off all the clips, wrapped them in foam, and shoved them back into the panel. It's very difficult to eliminate all the rattles in the doors. I have about 50 sq ft (possibly more) in just my doors. I think each car will be different but another possible tip that may help is to loosen up your door handles while you have your panels off, and shove some closed cell foam underneath the door handle where it meets the metal. I was also getting a lot of rattles from that section when the woofers hit.