Search  for anything...

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

  • Based on 738 reviews
Condition: New
Checking for the best price...
$74.95 Why this price?
Save $15.05 was $90.00

Buy Now, Pay Later


As low as $12.49 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – 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, Affirm, Afterpay, Apple Pay, and PayTomorrow. 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

FREE 30-day refund/replacement

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 Thursday, Jun 4
Order within 20 hours and 16 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Style: 30 sqft


Features

  • Siless MAX VIBRO 120 mil is ultimate quality sound deadening insulation. Designed for the automotive industry as an industrial sound damping material for applications that need extreme performance, it is well suited to the demanding car enthusiast as well.
  • Advanced Formulation - SILESS MAX VIBRO Damping Material consists of newly invented Bmastic, technologically most advanced and efficient sound deadening composition on the market today.
  • Value - SILESS VIBRO Damping Material is just priced to be cost effective, when compared to similar products on the market. Car soundproofing does not have to be expensive to work!!
  • Ease of Installation SILESS VIBRO 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.
  • SILESS VIBRO specifications Thickness 120 mil/ 0.12 inches/ 3mm, Coverage area - 30 ft2. The installation instructions are included in the package but a roller isn't.

Material: Rubber


Brand: Siless


Item Thickness: 0.12 Inches


Recommended Uses For Product: car soundproofing and sound dampening


Product Dimensions: 15.35"L x 11.81"W


Brand Name: Siless


Manufacturer: Bema Group Inc.


UPC: 094308950297


Manufacturer Part Number: VAR12030MIL


Model Number: VAR12030MIL


Unit Count: 1.0 Count


Item Thickness: 0.12 Inches


Item Dimensions L x W: 15.35"L x 11.81"W


Coverage: 30 square foot


Material Type: Rubber


Recommended Uses For Product: car soundproofing and sound dampening


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 4

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


  • Best butyl out there.
Style: 30 sqft
If you want the money you're spending on equipment to pay off, you NEED to deaden sound! I've used every major brand and siless is my favorite to work with and the best value for your money, I'm not just adding weight, it's a thermal barrier and reduce outside noise. I turned a 10 year old, base model civic into what feels like a top tier Lexus . Does not offgas, no smell. Super easy to install. Make sure you get a set of rollers! They're required to achieve the advantages of this stuff, it MUST be adhered well and you don't want to tear the interior out twice. ... show more
Reviewed in the United States on August 10, 2025 by Cee

  • High quality, super sticky, very effective
Style: 30 sqft
As long as the surface is thoroughly cleaned, these mats will stick to just about anything. They provide my car with a tremendous amount of sound dampening and have made riding in the car 10 times more enjoyable. I drive a Toyota Yaris and although the engine is built like it's meant to last forever (imagine that), the rest of the car is not of high quality. Which means we used to get A LOT of noise coming from the road, other cars, etc. After I installed these mats which, by the way, I wasn't able to install on every surface I wanted to install them on (due to lack of tools to be able to disassemble certain parts of the interior), the noise coming from outside the car is nearly completely gone. I covered the underside of my hood, the entire interior part of the hatchback, most of the floor in the trunk / spare tire well, and the entire interior side of the doors. The parts I couldn't get to (or didn't want to) were: the ceiling, underneath the driver & passenger seats, behind the dash and the floor for the 2nd row seating. As you can see I left a lot of surfaces untreated with this product AND STILL it blocks most of the sound. To note: people recommended getting the roller tools to help install these mats. I got a few of them in different sizes and they worked O K. Not because of the quality of the tool but because some places you need to install these mats in don't have enough clearance to use the tool. That being said, for the larger surfaces, the roller tools help a lot. Also I found it very beneficial to use aluminum tape while installing these. The tape I used is specifically designed for materials that undergo high temperature changes (like your dryer vents, etc.). This wasn't because the mats were not sticky enough but because there were some places I installed the mats with small gaps between them. I'd also recommend getting some kind of fluffy insulation-type material for large spaces that need noise dampening. Rock wool, for example, worked great for me. As an example, the interior sides of the 2nd row seating walls had large spaces between the plastic interior cover and the metal part of the car wall. I'd install the mats on the metal but was left with 6" - 7" of space between it and the plastic cover. I chose to fill those spots (and spots like it) with insulation which provided EVEN MORE noise dampening. ... show more
Reviewed in the United States on November 25, 2024 by Travis McKinstry

  • Great product!
Style: 30 sqft
I can say this product makes a huge difference with road noise and is cleaner and easy to work with when applying compared to other mats that cost about the same price.
Reviewed in the United States on February 14, 2026 by JaroldHarold

  • Great Quality and East Install
Style: 30 sqft
Works great and easy to install.
Reviewed in the United States on January 11, 2026 by Nikki

  • Easy to install and easy to cut! Good quality
Style: 30 sqft
The media could not be loaded. Details in the video! Only used dynamat in the past so I was hesitant to use this. Hesitant no more and the price was good. Good value, easy install, very happy!
Reviewed in the United States on January 26, 2026 by Mathew Pullin

  • Great for what it does but not a miracle
Style: 30 sqft
Sticks well. Definitely thicker and nicer than the Kilmat version. If I were buying again I would just buy more of this, the value is better even though you get less total coverage per pack. Can be cut to size easily, we used a box cutter which got a little gummed but but not too bad. we were able to get it in and around everywhere we needed to put it and it held up well as we were mashing it into weird spots. It doesnt smell hardly at all while being applied and once its on there is no smell whatsoever The product is great for what it is. 4 stars only because I think it gets oversold for how much this alone can do. We did notice a slight reduction in noise but nowhere near the multiple decibels we see claimed everywhere. If your vehicle is mostly quiet but just has that little bit getting through this will probably do wonders, If you have a vehicle where there's significant engine noise in the cabin you'll need more than just this to bring that down. ... show more
Reviewed in the United States on September 12, 2025 by A Viking

  • Probably the best value for this type of product
Style: 30 sqft
Works as advertised. I've used dynamat in the past and it works just the same. You can argue about the difference in quality if you want but they both perform the same task. Deadening panel vibrations. This brand performs well and is easy to apply.
Reviewed in the United States on November 22, 2025 by William R Crosby

  • Get Rid of New Ranger Tinny Door Noise
Style: 30 sqft
I imagine most of these things are fairly comparable, but I bought this one because it was what a guy used on YouTube for my exact problem on my exact rig. I bought a new Ford Ranger Lariat and I noticed that if I close the doors slightly hard or with the windows doors open, they sound like tinny trash. Not what you would expect from a $50k vehicle. Watched a YouTube video to get the confidence to start and finish the project and it was super easy. I didn't do as many layers or in as much detail that the guy did, but it solved my sound concern. Since there is enough left over after doing the doors, I may do the headliner at some point. One thing I got that I feel was worth was a roller to press on. It seems unnecessary, but it definitely helps adhere the panels better so they are more secure. So worth it to me for sure. ... show more
Reviewed in the United States on September 17, 2025 by Kevin S.

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...