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20 Best Sound Deadening Material For Boat Engine (2023 Updated)

There are a few different types of sound deadening material for boat engines, but they all essentially work to absorb or deflect engine noise. Some common materials used for this purpose include sound-absorbing foam, sound-dampening mats, and sound-deadening paint.

20 Best Sound Deadening Material For Boat Engine

Product Image Product Name Features Price

Boom Mat 050220 Spray-On Sound Deadening

  • Reduce unwanted road noise and vibration, even in hard-to-reach places.
  • Won’t crack or chip; helps prevent rust.
  • Paintable in just 6 hours.

Rockville Rockmat 50 sqft Butyl Rubber Sound Deadener Material Bulk Car Kit (RM50RT-B)

  • 50 Sq Ft

Hushmat 10500 Ultra Bulk Kit- 30 PC Black

  • Superior adhesion to most surfaces.including oily metal!
  • HushMat Ultra Vibration Dampening Material applies easily by hand-no surface cleaning required!

Second Skin Damplifier Pro Premium Car Sound Deadening Material(2mm)– Butyl Rubber Auto Sound Deadener Mat(20 Sq ft, 12 Sheets) Made in USA Trunk Pack

  • Trunk Pack, 20 Sq Ft

NVX SDBDK12 12 Square Feet Black Sound Deadening Kit (Four 12" x 36" Pieces)

  • Solid Black for Any Stealth Car Audio Installation
  • 2.3mm (91mil) thick for better performance
  • Quiets Vibrations and Stops Rattles

Dynamat 10425 Xtreme Wedge Pak

  • Fit type: Universal
  • Package Dimensions: 59.055 H x 6.604 L x 9.906 W (centimetres)
  • Package Weight: 1.021 kilograms

Kilmat 50 Mil 50 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio

  • 50 / 50 Sqft

Noico Red 315 Mil 9.5 sqft Car Sound Insulation, Heat and Cool Liner, Self-Adhesive Closed Cell Deadening Material (Pe Foam Sound Deadener)

  • 9.5 Sqft

Dynamat 10465 Xtreme Mega Pak

  • Dynamat difference minimizes high levels of noise that cause driver fatigue and irritation
  • Strong adhesive the extra sticky, patented butyl rubber layer will adhere to a surface and stay in place

Kilmat 80 Mil 36 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and Dampening

  • Best price comparing to other brands.
  • The thicker the material the more performance you get!
  • Material effectively deadens the background noise.

Dynamat 10455 Xtreme 36 Sq ft Bulk Pack 9 Sheets 18"x32"

  • Reduces door rattles & road noise
  • Improves audio quality
  • Easy peel & stick application

Eastwood X-Mat Sound Deadening Material 5pc – 12×12 Car Parts

  • All-purpose X-MAT with three layers offering excellent temperature and sound reduction
  • Butyl rubber membrane absorbs road and drive-line noise while high performance aluminum facing reduces engine and exhaust heat

Dynamat 21100 Dynapad 3/8" Thick x 32" x 54" Thermal & Sound Insulation Kit

  • The heavy-duty composite barrier of DynaPad eliminates low frequency exhaust and road noise, and blocks heat
  • Can be moved and reused because it has no adhesive

Noico 80 Mil 36 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener

  • 36 Sqft

NVX Sdbbp40 40 Square Feet Black Sound Deadening Kit – Ten 18" x 32" Pieces

  • 2.3mm (91mil) thick for better performance
  • Quiets Vibrations
  • Increases SPL (LOUDER)

Noico Black 80 Mil 36 Sq ft Car Sound Deadening Butyl Automotive Deadener Restoration Mat and Noise Dampening Insulation

  • Please use gloves for your hands protection when working with material.
  • Correct installation of material is 50 % of successful soundproofing of your car.

B-Quiet Ultimate The Best Viscoelastic Sound Deadener 12 Sq. ft.

  • 12 Foot X 1 Foot

Siless 80 Mil 36 sqft Sound Deadening Mat Sound Deadener Mat Car S

  • 80 / 36 Sqft
Boom Mat 050220 Spray-On Sound Deadening
  • Reduce unwanted road noise and vibration, even in hard-to-reach places.
  • Won’t crack or chip; helps prevent rust.
  • Paintable in just 6 hours.
Rockville Rockmat 50 sqft Butyl Rubber Sound Deadener Material Bulk Car Kit (RM50RT-B)
  • 50 Sq Ft
Hushmat 10500 Ultra Bulk Kit- 30 PC Black
  • Superior adhesion to most surfaces.including oily metal!
  • HushMat Ultra Vibration Dampening Material applies easily by hand-no surface cleaning required!
Second Skin Damplifier Pro Premium Car Sound Deadening Material(2mm)– Butyl Rubber Auto Sound Deadener Mat(20 Sq ft, 12 Sheets) Made in USA Trunk Pack
  • Trunk Pack, 20 Sq Ft
NVX SDBDK12 12 Square Feet Black Sound Deadening Kit (Four 12" x 36" Pieces)
  • Solid Black for Any Stealth Car Audio Installation
  • 2.3mm (91mil) thick for better performance
  • Quiets Vibrations and Stops Rattles
Dynamat 10425 Xtreme Wedge Pak
  • Fit type: Universal
  • Package Dimensions: 59.055 H x 6.604 L x 9.906 W (centimetres)
  • Package Weight: 1.021 kilograms
Kilmat 50 Mil 50 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio
  • 50 / 50 Sqft
Noico Red 315 Mil 9.5 sqft Car Sound Insulation, Heat and Cool Liner, Self-Adhesive Closed Cell Deadening Material (Pe Foam Sound Deadener)
  • 9.5 Sqft
Dynamat 10465 Xtreme Mega Pak
  • Dynamat difference minimizes high levels of noise that cause driver fatigue and irritation
  • Strong adhesive the extra sticky, patented butyl rubber layer will adhere to a surface and stay in place
Kilmat 80 Mil 36 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and Dampening
  • Best price comparing to other brands.
  • The thicker the material the more performance you get!
  • Material effectively deadens the background noise.
Dynamat 10455 Xtreme 36 Sq ft Bulk Pack 9 Sheets 18"x32"
  • Reduces door rattles & road noise
  • Improves audio quality
  • Easy peel & stick application
Eastwood X-Mat Sound Deadening Material 5pc – 12×12 Car Parts
  • All-purpose X-MAT with three layers offering excellent temperature and sound reduction
  • Butyl rubber membrane absorbs road and drive-line noise while high performance aluminum facing reduces engine and exhaust heat
Dynamat 21100 Dynapad 3/8" Thick x 32" x 54" Thermal & Sound Insulation Kit
  • The heavy-duty composite barrier of DynaPad eliminates low frequency exhaust and road noise, and blocks heat
  • Can be moved and reused because it has no adhesive
Noico 80 Mil 36 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener
  • 36 Sqft
NVX Sdbbp40 40 Square Feet Black Sound Deadening Kit – Ten 18" x 32" Pieces
  • 2.3mm (91mil) thick for better performance
  • Quiets Vibrations
  • Increases SPL (LOUDER)
Noico Black 80 Mil 36 Sq ft Car Sound Deadening Butyl Automotive Deadener Restoration Mat and Noise Dampening Insulation
  • Please use gloves for your hands protection when working with material.
  • Correct installation of material is 50 % of successful soundproofing of your car.
B-Quiet Ultimate The Best Viscoelastic Sound Deadener 12 Sq. ft.
  • 12 Foot X 1 Foot
Siless 80 Mil 36 sqft Sound Deadening Mat Sound Deadener Mat Car S
  • 80 / 36 Sqft

1. Boom Mat 050220 Spray-On Sound Deadening

Boom Mat 050220 Spray-On Sound Deadening

  • Reduce unwanted road noise and vibration, even in hard-to-reach places.
  • Won’t crack or chip; helps prevent rust.
  • Paintable in just 6 hours.
  • Single can will cover approximately 20 sq. ft.
  • Fit type: Universal Fit.

Check Latest Price

Sold By Price
Amazon.com – Seller
Eastwood Company
4 Wheel Parts
Summit Racing

Product Details

Specifications

Details
Length 2.7 in
Height 9.4 in
Width 2.7 in
Weight 1.5 lb

Reviews From Real Customers

butler4782
arn r
janie_jan

2. Rockville Rockmat 50 sqft Butyl Rubber Sound Deadener Material Bulk Car Kit (RM50RT-B)

Rockville Rockmat 50 sqft Butyl Rubber Sound Deadener Material Bulk Car Kit (RM50RT-B)

  • 50 Sq Ft

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay – audiosavings
Walmart – Audiosavings
rockville audio

Product Details

Specifications

Details
Product Dimensions 23 x 10.1 x 9.5 inches
Is Discontinued By Manufacturer No
Included Components Rockmat
Country of Origin China

Reviews From Real Customers

duallietwo
truer_61
brutus7196

3. Hushmat 10500 Ultra Bulk Kit- 30 PC Black

Hushmat 10500 Ultra Bulk Kit- 30 PC Black

  • Superior adhesion to most surfaces.including oily metal!
  • HushMat Ultra Vibration Dampening Material applies easily by hand-no surface cleaning required!
  • Trims with a pair of scissors or utility knife.
  • HushMat Ultra provides more weight per square foot for better damping!
  • Same material specified/used by major auto makers.

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Sold By Price
Amazon.com
eBay
Walmart
Best Buy

Product Details

Specifications

Details
Length 24 in
Height 3 in
Width 14 in
Weight 36 lb

Reviews From Real Customers

patgreen54

4. Dynamat 11101 Dynaliner 1/8″x32″x54″

Dynamat 11101 Dynaliner 1/8

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Sold By Price
Amazon.com
eBay
Walmart
Best Buy

Product Details

Specifications

Details
Manufacturer Part Number 11101
Product Line Dynaliner
Product Model 11101
Product Name Dynaliner 11101 Heat/Noise/Vibration Insulation Sheet
Physical Characteristics
Height 32″
Width 54″
Depth 0.1″
Miscellaneous
Additional Information Total Coverage: 12 ft²

5. Second Skin Damplifier Pro Premium Car Sound Deadening Material(2mm)– Butyl Rubber Auto Sound Deadener Mat(20 Sq ft, 12 Sheets) Made in USA Trunk Pack

Second Skin Damplifier Pro Premium Car Sound Deadening Material(2mm)– Butyl Rubber Auto Sound Deadener Mat(20 Sq ft, 12 Sheets) Made in USA Trunk Pack

  • Trunk Pack, 20 Sq Ft

Check Latest Price

Sold By Price
Amazon.com – Seller
Walmart – Second Skin Audio
Second Skin Audio
Sears – Ami Ventures Inc

Product Details

Specifications

Details
Package Dimensions 21.2 x 11.8 x 2.8 inches
Country of Origin USA
Is Discontinued By Manufacturer No

Reviews From Real Customers

Mark G
Alex C
cat m

6. NVX SDBDK12 12 Square Feet Black Sound Deadening Kit (Four 12″ x 36″ Pieces)

NVX SDBDK12 12 Square Feet Black Sound Deadening Kit (Four 12

  • Solid Black for Any Stealth Car Audio Installation
  • 2.3mm (91mil) thick for better performance
  • Quiets Vibrations and Stops Rattles
  • Increases SPL (LOUDER) and reduces heat
  • Four Step Peel and Stick Installation

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay – www-sonicelectronix-com
SonicElectronix.com
NVX

Product Details

Specifications

Details
Dimensions (each piece) 12″L x 36″W
Installation Location Door
Total Amount of Material 12 square feet
Material Use Sound Barrier
Secondary Use Vibration Dampener

Reviews From Real Customers

john boy
LandCruiser Addict
Happy in TX

7. Dynamat 10425 Xtreme Wedge Pak

Dynamat 10425 Xtreme Wedge Pak

  • Fit type: Universal
  • Package Dimensions: 59.055 H x 6.604 L x 9.906 W (centimetres)
  • Package Weight: 1.021 kilograms
  • Country of Origin : United States

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Amazon.com
eBay
Walmart
Crutchfield

Product Details

Specifications

Details
Multipack Quantity 1
Fuel Type Gas
Compatible Brands Dynamat
Piece Count 1
Video Game Platform Not Platform Specific

Reviews From Real Customers

sailhomer
jeffr.britt
bendcels

8. Kilmat 50 Mil 50 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio

Kilmat 50 Mil 50 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio

  • 50 / 50 Sqft

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Sears – FastMedia

Product Details

Specifications

Details
Product Dimensions 17 x 3 x 11 inches
Country of Origin Russian Federation
Is Discontinued By Manufacturer No
OEM Part Number KLM5050
Position Inner

Reviews From Real Customers

dmg4atcornell
ralphesimpson10
harha_8807

9. Noico Red 315 Mil 9.5 sqft Car Sound Insulation, Heat and Cool Liner, Self-Adhesive Closed Cell Deadening Material (Pe Foam Sound Deadener)

Noico Red 315 Mil 9.5 sqft Car Sound Insulation, Heat and Cool Liner, Self-Adhesive Closed Cell Deadening Material (Pe Foam Sound Deadener)

  • 9.5 Sqft

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay – libbyslibrary
meekoutlet.com

Product Details

Specifications

Details
Product Dimensions 17.65 x 10.85 x 3.5 inches
Country of Origin Russian Federation
Is Discontinued By Manufacturer No
Style 315 mil 9.5 sqft
Thickness 315 Mils

Reviews From Real Customers

scotzstuff
randyr5321

10. Dynamat 10465 Xtreme Mega Pak

Dynamat 10465 Xtreme Mega Pak

  • Dynamat difference minimizes high levels of noise that cause driver fatigue and irritation
  • Strong adhesive the extra sticky, patented butyl rubber layer will adhere to a surface and stay in place
  • Application: Use on rear decks, doors, floors, and the trunk to get more bass, more music, lower road noise and better sound
  • Simple to install for proper installation use one of our Dynaroller tools

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Sold By Price
Amazon.com
eBay
Walmart
Best Buy

Product Details

Specifications

Details
Length 53 in
Height 2 in
Width 25 in
Product Weight
Weight 40 lb

Reviews From Real Customers

JIMMY
gsnort

11. 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

  • Best price comparing to other brands.
  • The thicker the material the more performance you get!
  • Material effectively deadens the background noise.
  • Easy, hassle free installation PAY ATTENTION!
  • Please use the gloves for your hands protection when working with material.

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart
Sears – FastMedia

Product Details

Specifications

Details
Attribute Name Attribute Value
Product Dimensions 17.5 x 3.5 x 11 inches
Country of Origin Russian Federation
Is Discontinued By Manufacturer No
Item Package Quantity 1

Reviews From Real Customers

ryan57garr
wilcl_6481

12. Dynamat 10455 Xtreme 36 Sq ft Bulk Pack 9 Sheets 18″x32″

Dynamat 10455 Xtreme 36 Sq ft Bulk Pack 9 Sheets 18

  • Reduces door rattles & road noise
  • Improves audio quality
  • Easy peel & stick application
  • 9 Sheets – 46 x 81cm (3.3 m)

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Amazon
eBay
Walmart
Crutchfield

Product Details

Specifications

Details
Length 21 in
Height 3 in
Width 12 in
Product Weight
Weight 23 lb

Reviews From Real Customers

buysolarbags
xxx-mikeportnoy-xxx
alfredmunkenbeck

13. Eastwood X-Mat Sound Deadening Material 5pc – 12×12 Car Parts

Eastwood X-Mat Sound Deadening Material 5pc - 12x12 Car Parts

  • All-purpose X-MAT with three layers offering excellent temperature and sound reduction
  • Butyl rubber membrane absorbs road and drive-line noise while high performance aluminum facing reduces engine and exhaust heat
  • Easily cut and installed under carpets, inside doors, around speaker boxes and firewalls so you can enjoy your ride in greater comfort
  • Conforms effortlessly to complex interior contours of floors, door and side panels
  • Reduces heat as much as 30 °F and sound by as much as 19dB

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Amazon
eBay – eastwoodcompany
Eastwood Company

Product Details

Specifications

Details
Category Interior

14. Dynamat 21100 Dynapad 3/8″ Thick x 32″ x 54″ Thermal & Sound Insulation Kit

Dynamat 21100 Dynapad 3/8

  • The heavy-duty composite barrier of DynaPad eliminates low frequency exhaust and road noise, and blocks heat
  • Can be moved and reused because it has no adhesive
  • Easy to install as an under-carpet pad. for the best results, install DynaPad over Dynamat Xtreme, and experience the Dynamat difference
  • 100% Made in the USA

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Amazon
eBay
Walmart
CJ Pony Parts

Product Details

Specifications

Details
Manufacturer Part Number 21100
Product Line DynaPad
Product Model 21100
Product Name DynaPad Heat/Noise/Vibration Insulation Sheet
Product Type Sound Dampening Sheet

15. Noico 80 Mil 36 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener

Noico 80 Mil 36 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener

  • 36 Sqft

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Sold By Price
Amazon
eBay
eBid – Huwaisat Shop
electroeshop.com

Product Details

Specifications

Details
Finish Silver without Logo
Assembled Product Weight 28 lbs
Assembled Product Dimensions (L x W x H) 21.50 x 11.50 x 2.80 Inches

Reviews From Real Customers

lees337
suggy-44

16. NVX Sdbbp40 40 Square Feet Black Sound Deadening Kit – Ten 18″ x 32″ Pieces

NVX Sdbbp40 40 Square Feet Black Sound Deadening Kit - Ten 18

  • 2.3mm (91mil) thick for better performance
  • Quiets Vibrations
  • Increases SPL (LOUDER)

Check Latest Price

Sold By Price
Amazon
eBay
Walmart
NVX

Product Details

Specifications

Details
Package Dimensions ‎18 x 12 x 4 inches
Is Discontinued By Manufacturer ‎No

17. Noico Black 80 Mil 36 Sq ft Car Sound Deadening Butyl Automotive Deadener Restoration Mat and Noise Dampening Insulation

Noico Black 80 Mil 36 Sq ft Car Sound Deadening Butyl Automotive Deadener Restoration Mat and Noise Dampening Insulation

  • Please use gloves for your hands protection when working with material.
  • Correct installation of material is 50 % of successful soundproofing of your car.

Check Latest Price

Sold By Price
Amazon
bigamart.com

Product Details

Specifications

Details
Dimensions 11.5×2.7×21.3 inches

Reviews From Real Customers

sedunster
dylanlikeshats

18. B-Quiet Ultimate The Best Viscoelastic Sound Deadener 12 Sq. ft.

B-Quiet Ultimate The Best Viscoelastic Sound Deadener 12 Sq. ft.

  • 12 Foot X 1 Foot

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Amazon
eBay
B-Quiet
Sears – zabiva

Product Details

Specifications

Details
Product Dimensions 144 x 12 x 1.8 inches

Reviews From Real Customers

Kirt A.
Jay F.
Joel S.

19. Dynamat 10455 18″ x 32″ x 0.067″ Thick Self-Adhesive Sound Deadener with Xtreme

Dynamat 10455 18

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Amazon
eBay
Walmart
Autoplicity.com

Product Details

Reviews From Real Customers

traddders

20. Siless 80 Mil 36 sqft Sound Deadening Mat Sound Deadener Mat Car S

Siless 80 Mil 36 sqft Sound Deadening Mat Sound Deadener Mat Car S

  • 80 / 36 Sqft

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Sold By Price
Amazon
eBay
Walmart – Avenue A Stores LLC
Sears – ErgodE

Product Details

Specifications

Details
Thickness 0.08 (in.)
Fit Universal
Installation Method Slip-on
Insulates Against Heat and Sound
Position Combination

Reviews From Real Customers

customerserviceexpert
hutchynh

Conclusion

There are many different types of sound deadening materials that can be used for boat engines. Some of the most popular materials include foam, fiberglass, and lead. Each type of material has its own advantages and disadvantages.

Foam is the lightest and most affordable option, but it does not last as long as the other materials. Fiberglass is more durable than foam, but it is also more expensive. Lead is the heaviest and most expensive option, but it is also the most effective at reducing noise.

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