Search  for anything...

Siless Liner 157 mil (4 mm) 51 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener

  • Based on 1,158 reviews
Condition: New
Checking for product changes
$69.95 Why this price?
Save $86.04 was $155.99

Buy Now, Pay Later


As low as $11.66 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Nov 24
Order within 10 hours and 26 minutes
Available payment plans shown during checkout

Size: 51 sqft


Features

  • Siless 80 mil is all in all high quality sound deadening insulation. Designed as an industrial sound damping material for applications that need extreme performance, it is well suited to the demanding car enthusiast.
  • Value - Siless Damping Material is priced to be cost effective, when compared to similar products on the market. Car soundproofing does not have to be expensive to work!!
  • Not Just for car soundproofing - Siless Damping Material was originally created for applications that required extreme damping. This product will quiet any sheet metal application. Also used in the HVAC, heavy equipment and audio industries.
  • Ease of Installation - Siless Damping Material is easy to install with a peel and place application. Simply trim the pieces to fit, peel and place and hand roll to ensure good adhesion. No messy spray-on paints or adhesives are needed to install this product.

Description

Siless Aluminum Foil Finish Liner is a high density, closed cell foam with aluminum finish that serves as an efficient heat and vibration absorber. Closed-cell foam is an effective material for reducing noise reverberations, and the Siless Liner is moisture-resistant, fire-retardant, and dust-free. Our heat-blocking foam rolls are pliable and easy to work with, and they install in minutes. The high-density closed-cell foam is perfect for firewall, doors, roof, trunk and floor. Siless Liner is the most effective automotive thermal insulator available online, and perfect to use on top of Siless Sound Deadening Mat. It is a soft, self-adhesive closed cell foam with many thousands of cells packed extremely close together, which gives the material near zero air infiltration. This is the key to its ability to reduce heat, as well as resist oil and water. Since it will not hold water, it will not promote rust like most under carpet padding and thermal insulators. Siless Liner is also durable enough to be crush and tear resistant. Because of its durability and ability to resist oil and water, Siless Liner is long lasting. Siless Liner has the highest heat blocking properties available in a single layer synthetic foam. Combined with Siless Sound Deadening Mat, its nearly doubles the total thermal resistance ability. It provides excellent insulation for the roof, firewall, floor, quarter panels, doors, and even under the hood.


Manufacturer: ‎Bema Group Inc.


Brand: ‎Siless


Item Weight: ‎4.2 pounds


Product Dimensions: ‎11.5 x 9 x 2 inches


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎SLF51


Date First Available: December 13, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 24

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great product. Great adhesive
Size: 51 sqft
I did my inside fire wall all the way to the rear window of my 40 Buick. Worked great. Very convenient in the square cuts to install. I adhered a standard classic car floor over it with 3M 77 adhesive and it bonded everything awesome. Highly recommend 🍻
Reviewed in the United States 🇺🇸 on May 12, 2023 by Erin Salisbury Erin Salisbury

  • Its does what it says
Size: 36 sqft
My 2013 Ford Edge has the loudest road noise I've ever experienced. I shudda bought the MKX, maybe would have been worth it to get the extra quietness. Anyway, pulled the spare tire out and lined the entire trunk area with this stuff. it sticks instantly, but you can reposition some. Also pulled the lift gate panel off and lined it with foil. These is now a noticeable decrease in road noise, to the point where we can actually hear conversation in the back seat now. I want to do the wheel well panels inthe back too but that is a much much larger job. ... show more
Reviewed in the United States 🇺🇸 on April 6, 2023 by David Berry

  • Great sound barrier.
Size: 36 sqft
I put this in on an old pickup cab flooring. Very sticky and is easy to work with.
Reviewed in the United States 🇺🇸 on May 6, 2023 by Mark E.

  • Its s average material for sound deadening but great thermal blocking
Size: 36 sqft
Easy to cut and install. The silver foil didnt tear/rip easily when installing with a roller. Its light weight but durable. Seems to adhere to the metal walls well. Not as sound deadening as the heavier butyl rubberized material ive used, but its not near as expensive either. I just compared the thermal quality between hushmatt, thinsulate, and Siless installed in my van. I found Siless to be the best thermal break. The material comes in different thickness, so maybe a thicker material than what i used will work better. ... show more
Reviewed in the United States 🇺🇸 on March 21, 2023 by T YoYo

  • value
Size: 36.5 sqft
SOFAR GREAT
Reviewed in the United States 🇺🇸 on May 17, 2023 by SGT. VIC

  • Bueno
Size: 36 sqft
Bueno
Reviewed in the United States 🇺🇸 on May 15, 2023 by Joseph Matejek

  • SUPERB!!!!
Size: 36.5 sqft
I put this in my 1991 Dodge 150 and wow what an amazing improvement. I used this on the floor of the truck.
Reviewed in the United States 🇺🇸 on April 16, 2023 by Karissa Stryker

  • Good
Size: 36 sqft
Atv
Reviewed in the United States 🇺🇸 on April 15, 2023 by Joe

Can't find a product?

Find it on Amazon first, then paste the link below.