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

  • Based on 3,601 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, May 29
Order within 20 hours and 35 minutes
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Material Type: 157mil Closed Cell Foam


Style: 157 mil 36 SqFt


Features

  • Closed Cell Foam: OIL and Waterproof LINER closed-cell polyethylene foam is the best for car, Siless with an adhesive layer 100% ensures optimum efficiency and thermal insulation that could be possibly gained. The price of 1 sqft of Siless Liner with similar characteristics is more then three times cheaper! Excellent quality for less money!!
  • Heat Blocker and Vibration Deadener: Effectively blocks 98% of radiant heat transfer. Siless Liner is a very versatile insulation material with excellent thermal barrier properties that will block engine, exhaust, & summer heat, ensure your vehicle stays cooler in the summer and warmer in the winter, making your ride more pleasant!
  • Lightweight, Waterproof: It is a waterproof light-weight thermal deadener with highly compressible closed cell foam formulation, it absolutely doesnt absorb moisture and has no odor, and its flexible which make it easy to install with or without roller.
  • The operating temperature of the material is the same as of the rubber foam up to 215 degrees Fahrenheit.
  • SILESS Liner specifications: Self-adhesive foam rolls (closed cell PE foam) with waterproof glue. Thickness 157 mil / 0.157 inches / 4mm. Number of rolls in the package - 1. Total coverage area - 36 ft2. Each roll size - 15.74 x 330.7 inches.

Material: 157mil Closed Cell Foam


Brand: Siless


Coverage: 36 square foot


Item Thickness: 4 Millimeters


Recommended Uses For Product: Insulating and soundproofing various components of a vehicle, including the firewall, doors, roof, trunk, and floor. See more


Product Dimensions: ‎330.7"L x 15.74"W


Manufacturer: ‎Bema Group Inc.


UPC: ‎670875990586


Part Number: ‎SLS15736


Item Weight: ‎2.6 pounds


Item model number: ‎SLL36


Is Discontinued By Manufacturer: ‎No


Size: ‎36 sqft


Style: ‎157 mil 36 SqFt


Item Package Quantity: ‎1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: March 4, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 29

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.

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Top Amazon Reviews


  • Exactly what i needed!
Material Type: 314 mil Closed Cell Foam Style: 314 mil 18 SqFt
I recently purchased the Siless Liner 314 mil 18 sqft Sound Deadening mat and I am absolutely thrilled with the results. This product is a game-changer when it comes to reducing noise and improving the overall sound quality in my vehicle. The 314 mil thickness provides excellent sound insulation, effectively blocking out road noise, engine noise, and vibrations. One of the things that really impressed me about the Siless Liner is the price. Compared to other sound deadening products on the market, this one is incredibly affordable. I was a bit skeptical at first because of the low price, but after installing it in my car, I can confidently say that it is worth every penny. The quality of the material is top-notch, and it is easy to work with during the installation process. Not only does the Siless Liner effectively reduce noise, but it also helps to improve the overall sound quality in my vehicle. The sound deadening material creates a more acoustically pleasing environment, allowing me to enjoy my music and conversations without any distractions. I have noticed a significant difference in the clarity and depth of the sound in my car since installing the Siless Liner. Overall, I highly recommend the Siless Liner 314 mil 18 sqft Sound Deadening mat to anyone looking to improve the sound quality in their vehicle. It is a cost-effective solution that delivers exceptional results. Don't let the affordable price tag fool you - this product is a game-changer when it comes to reducing noise and enhancing the overall driving experience. ... show more
Reviewed in the United States on May 8, 2025 by Sean

  • Great product
Material Type: 157mil Closed Cell Foam Style: 157 mil 36 SqFt
Very happy with this product. I covered the hood, entire floor and 4 doors on my diesel Exursion. I then put 36 sq ft of Siless liner on the front floor boards up to the firewall. I only had enough to do 1/3 of the floor. Need to order more. This has greatly reduced the road noise on my Excursion. The liner makes all the difference as the butyl deadner really didn’t cut down on the diesel engine. Product is very sticky! You aren’t gonna pull it up to move it. However it is much easier to install than butyl floor deadner. ... show more
Reviewed in the United States on March 31, 2025 by Melissa/Marc Melissa/Marc

  • Good…but doesn’t last.
Material Type: 157mil Closed Cell Foam Style: 157 mil 36 SqFt
I have had this one my doors for about two years now and the glue is giving out already. So def a good material but needs better glue backing that last longer.
Reviewed in the United States on January 5, 2025 by JSoucier

  • Good product, would buy again
Material Type: 314 mil Closed Cell Foam Style: 314 mil 18 SqFt
Overall, this worked well to lower the road noise in the cab of a 25 year old pickup. I used to have a problem hearing/talking on phone calls because of road noise at interstate speeds, but after installing this I'm able to hear and be heard on the phone. Benefits: - Easy to install - Super strong adhesive - Easy to cut to size - Small enough that all the dash components were still easy to reinstall - Reduced noise in the cab Installation Tips: - Use scrap cardboard to mockup and test fit pieces - Use a box cutter or scissors to cut pieces to size - Use a box cutter to cut sections in the disposable adhesive backing. This will allow you to install it in sections, without having the entire adhesive side exposed and getting stuck where you don't want it. - After cutting sections in the adhesive backing, remove a small section in one of the corners and stick that to the vehicle. This will let you do two things, test fit the final piece, and hold it in place while you peel back the other sections of adhesive backing - Use a roller to seal the mat against the vehicle. This prevents moisture from being trapped between the mat and the vehicle, which could lead to corrosion. ... show more
Reviewed in the United States on September 14, 2023 by ak_ ak_

  • Great product
Material Type: 157mil Closed Cell Foam Style: 157 mil 36 SqFt
Very sticky and easy to cut. Works great.
Reviewed in the United States on April 9, 2025 by Mike

  • Reduction of RV Interior Noise
Material Type: 157mil Closed Cell Foam Style: 157 mil 36 SqFt
Excellent product. Easy to cut n install. Noise reduction so far is reduced , need more time to fully say how much. Value is good , removal is a bit difficult in my opinion. Overall I like the looks , n easy to install.
Reviewed in the United States on March 17, 2025 by Robert B.

  • Not Heavy Enough
Material Type: 157mil Closed Cell Foam Style: 157 mil 9 SqFt
I used this on the roof of my Chinese excavator. That thing was humming along quite well at many frequencies and needed to be attenuated. I bought this product for this purpose but quickly found out that it was not dense enough. While it did attenuate the noise by about 50%, the material is just not dense enough to get more out of it. I will say though that the glue they used is fantastic. If/when I remove it to install something different, it’ll be a chore to take it off. ... show more
Reviewed in the United States on November 29, 2024 by Geared62 Geared62

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