Siless Vs Dynamat: Which Sound Deadening Material Is Better?

Looking to soundproof your car? You’ll encounter two popular options: Siless vs Dynamat. Both aim to lessen noise and vibrations, but which is superior? This piece compares Siless and Dynamat to assist in your decision.

Siless is a newer brand but has recently gained much popularity for its affordable yet high-quality soundproofing materials, such as mats, foam, and insulation. Car enthusiasts opt for Siless as a budget-friendly alternative to pricier brands like Dynamat.

Dynamat, however, is a well-established brand present in the industry for over three decades. It has earned trust for its top-notch products, including mats, sprays, and insulation. Although it costs more than Siless, many deem the quality justifies the expense.

Siless Sound Deadening Material

Siless quiets your ride. This automotive soundproofing solution is light and supple, fashioned from butyl rubber and foil to absorb and dampen sound waves.

Application is a breeze with Siless, as it comes equipped with an adhesive backing that allows for quick and easy installation on the car’s interior, including the floor, doors, and trunk. Come rain or shine, Siless remains steadfast with its waterproof and heat-resistant properties.

With its affordability and effectiveness in reducing road noise and enhancing the auditory experience, it’s no wonder Siless has earned glowing reviews from satisfied customers.


  • Siless fits your budget better than other sound-deadening materials.
  • Siless won’t weigh down your car.
  • Siless goes on with ease, no special tools are needed.
  • Siless reduces road noise, vibrations, and rattles for a peaceful ride.


  • Siless users warn that its adhesive may prove feeble, failing to secure the material in position.
  • The comparative thinness of Siless poses a challenge, impeding its ability to diminish sounds of the lowest frequencies.
  • Some sound-deadening materials exceed Siless in toughness, as it falls short in durability.
  • Smaller Siless sheets can’t compete with larger options, leaving some areas inadequately treated.

Dynamat Sound Deadening Material

Dynamat, a brand renowned in the automotive soundproofing industry since 1989, offers a variety of products to quell noise and vibration in vehicles. Its range includes Dynamat Xtreme, Dynamat SuperLite, and Dynamat DynaPad, each serving different needs.

Dynamat Xtreme, the flagship product, is a multi-layered, butyl-based material that promises maximum sound-deadening capabilities. Consisting of a layer of butyl rubber, an aluminium layer, and an adhesive, it acts as a heat barrier while soaking up noise and vibration.

Dynamat SuperLite, a thinner and lighter iteration of Dynamat Xtreme, serves those who desire a reduction in noise and vibration without the weight addition. With a layer of butyl rubber and an aluminium layer, it’s thinner and lighter than the flagship product.


  • Dynamat reduces road noise and vibration, making your ride more comfortable.
  • Installing Dynamat can reduce wear and tear on your car’s interior components caused by noise and vibration, increasing its resale value.
  • Dynamat can be easily installed with minimal tools, making the process straightforward.
  • Dynamat offers products for different budgets and needs, with specific solutions for doors, floors, trunks, and more.


  • Dynamat’s price is higher than other sound-deadening materials in the market, which can be a concern if you need to cover a large surface area.
  • The weight of Dynamat can be significant, making it a cumbersome choice for certain vehicles.
  • While installing Dynamat is simple, it can consume a considerable amount of time, particularly for extensive projects.
  • Dynamat may trap heat in your car, leading to discomfort on hot days.

Comparison between Siless Vs Dynamat

Comparison between Siless Vs Dynamat
Comparison between Siless Vs Dynamat

Siless vs Dynamat: Price Comparison

Dynamat and Siless are two brands of sound-deadening materials. Dynamat has been around for a while, while Siless is newer but gaining popularity for its affordability and effectiveness. We’ll compare their prices here to help you decide.

Dynamat is more expensive than Siless. Dynamat Xtreme, its most popular product, costs about $200 for a 36 square feet pack. Siless Liner, a similar product, costs around $100 for the same size pack, making Siless almost half the price of Dynamat.

However, the thickness of the material affects the price. Dynamat is generally thicker than Siless, providing better sound deadening. Dynamat Xtreme is 80 mils thick, while Siless Liner is 70 mils thick. So, for the best sound deadening, you may want to choose Dynamat, even though it’s more expensive.

Pack size is another factor. Dynamat offers packs from 10 to 100 square feet, while Siless offers only 36 and 72-square-foot packs. So if you have a small project, Dynamat may be a better option as it offers smaller pack sizes.

Siless vs Dynamat: Sound-Deadening Performance

Dynamat, a well-known brand with a long-standing reputation, is often considered the gold standard in the field. In contrast, Siless, a new entrant, has swiftly gained recognition for its reasonable pricing and effectiveness.

Both Siless and Dynamat are made of butyl rubber and feature an aluminium backing that deflects heat and prevents rust. However, Dynamat, being thicker and denser, performs better at muffling noise. Dynamat also excels in reducing vibrations and rattles, which can cause annoyance in certain vehicles.

Nevertheless, Siless isn’t far behind in performance. Although it may lack Dynamat’s thickness, it still effectively minimizes road noise and vibrations. Several users have reported that Siless is as competent as Dynamat in decreasing noise levels in their vehicles.

One of Siless’s strengths is its affordability. Compared to Dynamat, Siless is significantly less expensive, making it a more appealing option for budget-conscious consumers. However, it’s worth noting that Siless may not be as durable as Dynamat and may require more frequent replacements.

Siless vs Dynamat: Ease of Installation

When comparing Siless and Dynamat, ease of installation is a key factor. Dynamat can be quite challenging to install, requiring extensive cutting and shaping to fit car nooks and crannies. Conversely, Siless is more manageable, as it can be cut with scissors or a utility knife.

Material weight is another consideration. Dynamat is weightier than Siless, making it harder to maneuver during installation. Siless is lightweight and effortless to handle, simplifying the process.

Note that both Siless and Dynamat include installation instructions to facilitate the process. Nonetheless, Siless is generally the simpler option, particularly for novices to soundproof or DIY work.

Siless vs Dynamat: Customer feedback comparison

Siless and Dynamat are brands known for hushing up noise in cars. Here’s what customers have to say about them:


  • Folks generally find Siless to be cheaper than Dynamat.
  • Many customers say Siless is simple to install and slice with a razor blade.
  • A few customers claim Siless isn’t as good as Dynamat at the muffling sound.
  • Siless has a pungent scent upon installation, but it fades after a few days, according to some customers.


  • Customers generally believe Dynamat is better at muffling sound than Siless.
  • Many buyers find Dynamat easy to install and shape bumpy surfaces.
  • Some customers find Dynamat pricier than Siless.
  • A handful of customers say Dynamat can be tough to cut and handle.

FAQs for Siless Vs Dynamat

how many DB does dynamat reduce?

Dynamat might cut ten decibels off the noise, as some say. Though, the extent of hush-hush relies on sundry elements like ride make, Dynamat quantity, and noise pitch.

what is the best car soundproofing?

The best soundproofing material for your ride relies on your distinct requirements and wallet. Popular and potent options include Dynamat, Siless, FatMat, and Noico. Dynamat boasts top-notch quality and endurance, whereas Siless presents a pocket-friendly alternative that doesn’t compromise on value. Budget-conscious consumers can also explore FatMat and Noico, which offer decent results. In the end, your selection hinges on your specific needs, financial constraints, and tastes.

what is the r-value of dynamat?

Dynamat lacks official R-value, being non-insulating. R-value gauges the heat resistance of insulators. Dynamat muffles car noise and vibrations, absorbing and scattering sound waves. Its potency is measured through decibel (dB) reduction.


Siless and Dynamat are sound-deadening materials that reduce noise and vibrations in your vehicle. Siless is cheaper and has good value, while Dynamat is pricier but performs better and lasts longer. Your choice depends on your budget and needs.

Either way, adding sound-deadening material to your car improves your driving and makes it more enjoyable.

About Author

this is john Andrew from Australia, I am an architect I have worked for the home improvement company Bunnings. I am a home improvement specialist as well as a part-time blogger. Where I will keep giving you tips on soundproofing, you follow our blog.

Sharing Is Caring:

Leave a Comment