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10 Best Sound Deadening Materials 2025 in the United States

#1

Winner

10.0 score

KILMAT 80 mil 36 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

KILMAT 80 mil 36 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

KILMAT

10.0 score

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The KILMAT 80 mil Car Sound Deadening Mat is designed to reduce noise and vibrations effectively in automotive applications. Made from butyl with an aluminum foil layer, this material is durable and provides good sound insulation. At 80 mil thickness, it is relatively thick compared to other sound-deadening materials, which enhances its noise reduction capabilities.

Rating
10.0
Chosen by1,483
Thickness
Ease of Installation

Most important from
15433 reviews

Thickness
Works perfectly in various applications, including trunks, with perfect thickness and fit.
Ease of Installation
Easy to apply despite being a bit messy to handle, with a tarry odor that disappears within a day or two.
#2
9.7 score

Dynamat Xtreme Sound Deadening Car Insulation Bulk Pack 10455 – Noise Dampening for Floor, Doors, Panels, Hood or Trunk – Easy Self Adhesive Install – Made in USA – 9 Sheets 18”x32”, 36 sq ft total

Dynamat Xtreme Sound Deadening Car Insulation Bulk Pack 10455 – Noise Dampening for Floor, Doors, Panels, Hood or Trunk – Easy Self Adhesive Install – Made in USA – 9 Sheets 18”x32”, 36 sq ft total

Dynamat

9.7 score

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The Dynamat Xtreme Sound Deadening Car Insulation Bulk Pack is a popular choice for car enthusiasts and professionals aiming to reduce unwanted noise, heat, and vibrations in their vehicles. Made from a proprietary blend of butyl rubber, this material is highly effective in soundproofing and thermal insulation. The pack includes nine sheets, each measuring 18”x32”, which covers a total of 36 square feet, sufficient for a two-door sedan.

Rating
9.7
Material Type
Ease of Installation

Most important from
2799 reviews

Material Type
The material's flexibility ensures comprehensive coverage, even in challenging areas, making it highly effective without adding too much bulk.
Ease of Installation
The self-adhesive backing simplifies installation, allowing for easy peel and stick application and firm adherence to various contours and shapes within the vehicle.
#3
9.4 score

Dynamat Xtreme Tech Pack Sound Deadening Car Insulation – Noise Dampening for Floor, Doors, Panels, Hood, Engine or Trunk – Easy Self Adhesive Install – Made in USA – 7 Sheets, 18”x32”, 28 sq ft total

Dynamat Xtreme Tech Pack Sound Deadening Car Insulation – Noise Dampening for Floor, Doors, Panels, Hood, Engine or Trunk – Easy Self Adhesive Install – Made in USA – 7 Sheets, 18”x32”, 28 sq ft total

Dynamat

9.4 score

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The Dynamat Xtreme Tech Pack is a rubber-based sound deadening material designed specifically for car use, such as on floors, doors, panels, hoods, and trunks. It comes in seven sheets, each measuring 18 by 32 inches, covering a total of 28 square feet. This product is known for reducing unwanted road noise, minimizing speaker distortion, and stopping vibrations and resonance, which helps your car feel quieter and more comfortable. The material is thin and flexible, making it easy to cut and apply with its strong peel-and-stick adhesive. This means you can install it yourself without needing special tools or professional help.

Rating
9.4
Thickness
Ease of Installation

Most important from
2799 reviews

Thickness
The thickness strikes a perfect balance, effectively absorbing vibrations without adding bulk or interfering with seats and trim fitting.
Ease of Installation
Installation is effortless thanks to the strong peel-and-stick adhesive and the material's flexibility, allowing it to conform easily to various car surfaces and contours.

Top 10 Best Sound Deadening Materials 2025 in the United States

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Slide 1

STANLEY

STANLEY Supercoat Spray Foam Insulation Kit - Closed Cell Spray Foam Covers Up to 480 Sq.Ft. - Gun, Cleaner, Safety Items Included - 27.1 oz, 24 Pack

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#1

Winner

10.0  score
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KILMAT

KILMAT 80 mil 36 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

Material Type: Butyl with aluminum foil
Thickness: 80 Mils
Density: 0.5 pounds/sq ft
Ease of Installation: Self-adhesive

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Chosen by 1483 this week

Sponsored

Slide 1

STANLEY

STANLEY Supercoat Spray Foam Insulation Kit - Closed Cell Spray Foam Covers Up to 480 Sq.Ft. - Gun, Cleaner, Safety Items Included - 27.1 oz, 24 Pack

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#2
9.7  score
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Dynamat

Dynamat Xtreme Sound Deadening Car Insulation Bulk Pack 10455 – Noise Dampening for Floor, Doors, Panels, Hood or Trunk – Easy Self Adhesive Install – Made in USA – 9 Sheets 18”x32”, 36 sq ft total

Material Type: Rubber
Thickness: 1.7 mm
Ease of Installation: Self-adhesive
Temperature Resistance: High
Moisture Resistance: High

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#3
9.4  score
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Dynamat

Dynamat Xtreme Tech Pack Sound Deadening Car Insulation – Noise Dampening for Floor, Doors, Panels, Hood, Engine or Trunk – Easy Self Adhesive Install – Made in USA – 7 Sheets, 18”x32”, 28 sq ft total

Material Type: Rubber
Thickness: 0.1 inches
Ease of Installation: easy to cut and apply
Temperature Resistance: handles heat well
Moisture Resistance: handles moisture well

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#4
8.8  score
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Siless

Siless 80 mil (2mm) 36 sqft (3.4 sqm) Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material (36 sqft)

Material Type: butyl
Thickness: 80 mil
Ease of Installation: peel-and-place

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#5
7.3  score
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Siless

Siless Max 120 mil (3mm) 30 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material (30 sqft)

Material Type: Butyl rubber
Thickness: 120 mil (3mm)
Density: high density
Ease of Installation: peel and place
Temperature Resistance: good
Moisture Resistance: good

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#6
7.3  score
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KILMAT

KILMAT 50 mil 50 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

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14% OFF
#7
7.3  score
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Siless

Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier

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#8
7.3  score
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Siless

Siless Hybrid 3in1 200 mil 25 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material

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#9
7.0  score
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CUKWUYBY

Sound Deading Material for Cars, 80mil (2mm) 36 sqft (3.4 sqm) Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Noise Insulation and Vibration Dampening Material (33 pcs)

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5% OFF
#10
7.0  score
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Amazon Basics

Amazon Basics Car Sound Deadening Mat, 14.5" x 10", Pack of 10

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29% OFF
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Buying Guide for the Best Sound Deadening Materials

Choosing the right sound-deadening material can significantly improve the acoustics and comfort of your space, whether it's a car, a room, or any other environment. The goal is to reduce unwanted noise and vibrations, creating a quieter and more pleasant atmosphere. To make an informed decision, it's important to understand the key specifications and how they relate to your specific needs.
Material TypeSound-deadening materials come in various types, such as mats, sprays, foams, and barriers. Mats are typically made of butyl rubber or asphalt and are great for reducing vibrations in vehicles. Sprays are versatile and can be applied to hard-to-reach areas. Foams are lightweight and good for absorbing sound in rooms. Barriers are dense and block sound effectively. Choose the type based on where you plan to use it and the kind of noise you want to reduce.
ThicknessThe thickness of the sound-deadening material affects its ability to block and absorb sound. Thicker materials generally provide better sound insulation but may be more difficult to install and add more weight. For automotive use, a thickness of 1-2mm is common for mats, while home applications might benefit from thicker foams or barriers. Consider the space you have available and the level of noise reduction you need when selecting the thickness.
DensityDensity refers to how much mass is packed into a given volume of the material. Higher density materials are more effective at blocking sound because they provide a more substantial barrier. However, they can also be heavier and more challenging to work with. For automotive applications, a balance between density and weight is crucial, while for home use, higher density might be more acceptable. Assess the importance of weight versus sound-blocking capability for your specific project.
Ease of InstallationSome sound-deadening materials are easier to install than others. Mats often come with adhesive backing, making them straightforward to apply, while sprays require more preparation and equipment. Foams can be cut to size and fitted into place, but barriers might need professional installation. Consider your DIY skills and the complexity of the installation process when choosing a material. If you're not confident in your ability to install it yourself, you might prefer a simpler option or seek professional help.
Temperature ResistanceTemperature resistance is important, especially for automotive applications where materials can be exposed to extreme heat or cold. Materials like butyl rubber are known for their high-temperature resistance, making them suitable for use in car interiors. For home use, temperature resistance might be less critical but still worth considering if the material will be exposed to direct sunlight or varying temperatures. Ensure the material you choose can withstand the environmental conditions of your specific application.
Moisture ResistanceMoisture resistance is crucial for preventing mold and mildew, especially in areas prone to dampness. Materials like closed-cell foam are excellent at resisting moisture, making them ideal for basements or bathrooms. In automotive applications, moisture resistance helps prevent rust and corrosion. Evaluate the environment where the material will be used and choose one that offers adequate protection against moisture.

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