NVX Stealth Black SDBBP40 90 mil Thick 36 sqft. Car Sound Damping Mat, Butyl Automotive Sound Deadener, Audio Noise Vibration Insulation and Dampening (Nine 18” x 32” Sheets) - Bulk Pack
Condition: New
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Availability:
In Stock.
Arrives
Monday, Aug 11
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Style: 36 sq. ft. Bulk Kit (Black)
Features
- Solid Black for Any Stealth Car Audio Installation
- 2.3mm (91mil) thick for better performance
- Quiets Vibrations and Stops Rattles
- Increases sound quality and output of car audio system
- Increases SPL and Reduces heat
- Easy to form aluminum conforms to desired area of vehicle with ease
Material: 36 sq. ft.
Brand: NVX
Coverage: 40 square feet
Item Thickness: 0.09 Inches
Product Dimensions: 32"L x 18"W
Manufacturer: NVX
UPC: 818060018701
Part Number: sdbbp40_lc
Item Weight: 37.8 pounds
Product Dimensions: 32 x 18 x 0.04 inches
Is Discontinued By Manufacturer: No
Color: Black
Style: 36 sq. ft. Bulk Kit (Black)
Item Package Quantity: 1
Batteries Included?: No
Batteries Required?: No
Date First Available: January 10, 2018
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Aug 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 36 sq. ft. Bulk Kit (Black)
It definitely works. From what I understand, you're not really blocking much road noise, you're reducing the flex and vibration on the door panels which cuts down on noise. My observation is that the car is a bit quieter and a lot of high-pitched noise is removed. What you still hear is a deeper, lower pitch. I haven't taken a long road trip with it yet, but it seems like a more relaxing drive. The door speakers sound a lot better, and the volume knob on my stereo is lower. I purchased the Stealth Black SDBBP40 90 mil Thick 36 sq ft. The package contained a tad over 36 sq feet as advertised. A few of the sheets had a small amount of the black topcoat worn/scratched exposing the silver color underneath. This was not an issue for me. It's not hard to do this job, but it's a time-consuming project that took me more than six hours to cover four doors. I read that there are diminishing returns after 30-50% coverage and I think I got 80% coverage on the outer door skins and far less on the inner skins and door cards. You're not supposed to bother applying it if you have to cut it down to small pieces less than 5 or 6 square inches. The inner skin and door cards for my vehicle had fewer places to apply it in larger pieces.
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Reviewed in the United States on May 19, 2025 by bennettlo
Style: 1.38 sq. ft. Speaker Kit (Black)
Why did you pick this product vs others?: Got these to install into home made boombox. Works perfect, looks great, and sticks like crazy.
Reviewed in the United States on July 2, 2025 by jacob hamilton
Simply the best deal you can get on butyl rubber. Significant improvement of vibrations in the trunk of Q50. Only time will tell if it stays in place. Overall, very satisfied. Note: Some of the sheets has bad scrapes on the painted aluminum foil but not a big deal because they are covered by carpet trim.
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Reviewed in the United States on March 21, 2025 by Koz
Style: 36 sq. ft. Bulk Kit (Black)
Used this on my 2011 Scion xB. Floors, doors, sides, and now the roof. NVX has made the new bulk packs with only 9 sheets instead of 10. This stuff is WAY better than the other brands sold on here. NVX is 90 mil and it is thicker than the Siless 120 mil.
Reviewed in the United States on November 21, 2024 by AudioObsessions AudioObsessions
Style: 36 sq. ft. Bulk Kit (Black)
I loved everything about this product. I don't have 1 negative thing to say about it. Honestly I really tried to think of 1 thing that I didn't like and I couldn't find one. The package is great the materials that are being used for this product are amazing and lastly is, it just works so well. Super easy to cut and customize the shapes you need to lay down. Just take your time installing it and don't rush yourself. Make sure you have a ROLLER when doing this because it will make installing this much easier and quicker. I used it in my 2024 GMC SIERRA CREWCAB and it made the truck nice and sound. That tinny / rattle noise is gone. This was enough for me to do the back wall of the cab and the amp rack that went behind the rear seats, the doors and some spots just around the front dash area and a little bit on the floor but I didn't do anything on the roof. I wasn't trying to tare down the headliner yet, maybe later I will but again for 10 sheets of 18x32 this package was 💯🔥🫡🤝🤘🤙🤫
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Reviewed in the United States on September 18, 2024 by Justin Stalenski
Style: 36 sq. ft. Bulk Kit (Silver)
I have used different sound deadeners in the past, but this one seems to be very good quality. Thick aluminum foil on one side. Easy to cut with scissors or a razor blade. the paper backing stays on good and is fairly easy to remove. The adhesive sticks like crazy, especially if the temperature is warm and you use a roller while applying it. Be forewarned that if you need to remove a section after it has been installed and rolled out, good luck as it does not come off easy or in one piece. Once installed it makes a notable difference in sound and pretty much eliminates that tinny sound from door panels, body panels, and floorboard. Precautions to keep in mind: the foil is thick and can cut you easily, wear gloves! Make sure to cover all surfaces you are working around that you do not want ruined, if you get it on your upholstery or carpet, it will not come off (at least I have not found anything that successfully removes it without making things worse!) Great product, the only real negative I found is that NVX folds the larger pieces in the box for shipping, this leaves creases and can cause the protective wax backing to lift up around those creases.
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Reviewed in the United States on July 9, 2024 by MPFW
Style: 1.38 sq. ft. Speaker Kit (Silver)
I don't understand why I paid $15 for this product a month ago, now it costs $10. That's a lot of money for such a small product.
Reviewed in the United States on June 19, 2025 by Braulio Castillo
Style: 36 sq. ft. Bulk Kit (Black)
Works amazing for the price will be buying again to cover more area in the future
Reviewed in the United States on March 28, 2025 by Dmm388