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What material is used for sound deadening car doors?
A few weeks ago, I bought a new car. I’m really loving it for the most part, but the downside is how noisy it is, especially on the highway. You have to crank the radio to not hear the road. I was wondering if you could tell me about sound-deadening car doors and what materials I’d need to do it.
Matt Terzi · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
We’re glad you’re enjoying your new car, apart from the noise issue.
Without getting too technical, sound waves vibrate the air, and those vibrations travel through just about everything, including car doors. The less resistance those vibrations encounter, the more noise you hear.
There are essentially two forms of soundproofing you’ll find in cars (and rooms, for that matter). Sound deadening or dampening sheets and panels add density that helps limit sound waves traveling through your vehicle.
Decoupling is a more complicated process of creating an air channel between those sheets and panels—sound waves need to get through one layer, then fizzle a bit in open air before hitting another layer.
You’ll find car door sound deadening kits for around $50 to $200 per door or more. You might find a car customizing shop or car audio specialist in your area who will install the kit for you, too, though labor costs can vary wildly here. You could end up paying as much as $500 per door or even more for sound deadening work.
A few things to keep in mind if you decide to do this yourself:
- The wheel wells, firewall, roof, and floor panels all contribute to noise as well. You might want to identify other sources of noise, too.
- You’ll need some tools for the job: a trim remover, a screwdriver, a socket wrench, rubbing alcohol, and work gloves.
- Bigger panels are always better than smaller ones. You want to try and use the largest continuous pieces as much as possible where you can.
- Don’t stuff the doors unless the kit’s instructions tell you to. Most (but not all) kits are designed to work with some open air space.
We hope this helps you better understand the process of sound deadening car doors. And don’t forget to download the
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- Gregory R.
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