Enhance your car / motor / boat hall with our sound absorbers and benefit from:

  • optimum thermal insulation
  • reliable protection against the infiltration of oil and fuel
  • effective sound insulation of sheet metal
  • reduced vibration and booming (anti-drumming layer)
  • a significant noise reduction inside your vehicle
  • a reliable heat shield for hot areas

Products

Description

Testimonials

Section of a soni 1116 ALG glass fiber mat with aluminum surface Section of a soni 1116 ALG glass fiber mat with aluminum surface
soni 1116 ALG
Thickness: 4 mm
soni 1116 ALG – Heat protection and insulation material for extreme temperatures Reliable heat protection with acoustic effect Our soni 1116 ALG is a high-quality two-component material that has been specially developed for applications under extreme temperature conditions. The surface consists of a heat-resistant aluminium foil that reflects heat radiation and at the same time protects against fuels and lubricants. Underneath is a quilted glass fibre mat that provides both excellent thermal insulation and effective sound absorption. soni 1116 ALG thus combines heat protection, thermal insulation and sound absorption in a single product – ideal for use in vehicles, machines and industrial plants. Areas of application – Versatile and heat-resistant up to 600 °C The soni 1116 ALG insulation mat is ideal for all hot areas where heat and sound need to be reliably controlled. Typical areas of application: ✔ Engine compartment insulation in cars, lorries and commercial vehicles ✔ Machine cladding and technical equipment ✔ Shielding of exhaust systems, turbochargers or heat exchangers ✔ Heat protection in boats, buses or vintage cars ✔ Thermal insulation in industrial and craft environments Safe and compliant with standards in vehicle construction soni 1116 ALG complies with the automotive fire standards FMVSS 302 and DIN 75200 and is therefore approved for use in vehicle construction. The heat-resistant aluminium surface is flame-retardant and offers additional safety in hot areas. Easy processing and installation The self-adhesive backing allows for quick and secure installation – even in hard-to-reach areas. The mat can be cut to size with a cutter knife. For long-term fastening at high temperatures, additional mechanical fastening is required, e.g. with screws, brackets or metal pins. Advantages of soni 1116 ALG at a glance ✔ Two-component structure: aluminium foil + glass fibre mat ✔ Effective heat and sound insulation ✔ Reflection of heat radiation by aluminium surface ✔ Heat-resistant up to 600 °C (mechanically fixed) ✔ Oil, water and fuel repellent ✔ Complies with fire standards FMVSS 302 & DIN 75200 ✔ Easy to cut to size & self-adhesive ✔ Ideal for engine compartments, machines, industry and hot areas

Content: 0.5 m² (€45.80* / 1 m²)

€22.90*
Section of a PUR foam panel with diamond pattern Section of a PUR foam panel with diamond pattern
soni 471
Thickness: 10 mm
soni 471 – PUR acoustic panels for long-lasting sound and heat insulation Order PUR foam acoustic panels from soniflex The soni 471 acoustic panel is a high-quality PUR acoustic foam with a diamond-shaped thermal embossing that ensures a compacted and sealed surface. This structure makes the material particularly robust, durable and resistant to dirt – ideal for use in demanding environments. The air-permeable embossing also improves acoustic effectiveness, especially in the frequency range of typical engine noises. This makes soni 471 the perfect choice if you want to effectively reduce noise in your vehicle while also achieving a visually appealing surface. Areas of application for soni 471 Our soni 471 acoustic foam impresses with its high hydrolysis resistance and is therefore particularly frequently used in the automotive sector. Typical applications are: ✔ Sound-absorbing and heat-insulating interior trim for motorhomes, classic cars or commercial vehicles ✔ Engine compartment insulation and vehicle floor insulation ✔ Applications in mechanical and plant engineering where robust sound absorbers are required The acoustic foam naturally complies with the fire standards required for the automotive sector in accordance with FMVSS 302 and DIN 75200. Easy processing and installation Installing soni 471 couldn't be easier: the panel can be cut to the desired size with a craft knife. Thanks to its low weight and self-adhesive backing, it can be attached quickly, cleanly and permanently – even on slightly uneven surfaces. This saves you time during installation and allows you to benefit immediately from a noticeable reduction in noise and heat. Technical advantages at a glance ✔ PUR acoustic foam with diamond-shaped thermal embossing ✔ Compacted, dirt-resistant surface ✔ Air-permeable structure for high sound absorption ✔ High hydrolysis resistance (particularly durable) ✔ Complies with FMVSS 302 and DIN 75200 ✔ Self-adhesive backing for easy installation ✔ Ideal for vehicle insulation, machine cladding and technical equipment

Content: 0.5 m² (€22.60* / 1 m²)

€11.30*
Ausschnitt einer grauen Schaumstoffplatte mit Kunstlederoberfläche Ausschnitt einer grauen Schaumstoffplatte mit Kunstlederoberfläche
soni 485
Refurbish your tractor’s headliner yourself – with soni 485 acoustic material If you want to refurbish your tractor’s headliner, soni 485 is a high-quality acoustic material designed specifically for use in agricultural machinery. soni 485 is our innovative solution for the acoustic and visual optimisation of cabs in agricultural machinery. Thanks to its sound-absorbing properties, soni 485 ensures a significantly quieter working environment in the cab. Soundproofing for agricultural machinery: refurbishing the headliner with soni 485 The PUR acoustic panel combines high-performance sound absorption with a robust, washable faux leather surface – perfect for demanding applications in an agricultural environment. The perforations in the synthetic leather allow sound to penetrate the foam panel, where it is absorbed. soni 485 meets the fire safety standards required for vehicle construction in accordance with FMVSS 302 and DIN 75200. Easy installation for DIY headliners Thanks to the soft foam and flexible faux leather, soni 485 moulds quickly to the shape of the ceiling and wall surfaces. The panels can be cut to size with precision using a craft knife. Installation is straightforward using standard contact or spray adhesive (WIKO spray adhesive), which is temperature-resistant up to +80 °C. This makes replacing the headliner a straightforward DIY project for any farmer. Peace and comfort in the cab – with the soni 485 acoustic panel Lining the cab with soni 485 noticeably reduces the noise level. The result: a significantly quieter working environment that sustainably improves the driver’s well-being and concentration.

Content: 1.45 m² (€62.00* / 1 m²)

€89.90*
Section of a PUR foam panel with black foil surface Section of a PUR foam panel with black foil surface
soni 491
Thickness: 20 mm
soni 491 – PUR acoustic mat with micro-perforated film for long-lasting sound insulation Effective sound insulation and temperature insulation from soniflex Our PUR acoustic mat soni 491 is a high-quality soundproofing and insulation solution that has been specially developed for vehicle and engine compartment applications. The surface is coated with a micro-perforated, sound-permeable film that is easy to wipe clean and prevents the penetration of dirt, dust and liquids. Areas of application for soni 491 – Versatile, robust and durable The soni 491 acoustic mat is successfully used for noise reduction and temperature insulation in various areas: ✔ Vehicle and engine compartment lining ✔ Interior panelling in motorhomes, classic cars or commercial vehicles ✔ Sound insulation in machine housings and technical rooms ✔ Roller shutter box insulation to reduce draughts and noise Safety in accordance with the highest standards For vehicle construction, soni 491 meets the fire safety standards required by FMVSS 302 and DIN 75200. This means that the acoustic mat can also be used without any problems in safety-relevant areas – both in commercial and private environments. Easy installation and flexible processing The self-adhesive backing enables quick, clean and time-saving installation on almost all smooth, dust-free surfaces. Individual cuts can be made precisely and easily with a craft knife – just as required. Advantages of soni 491 at a glance ✔ High-quality PUR acoustic mat with micro-perforated, wipeable film ✔ Effective sound and heat insulation ✔ Oil, dirt and liquid repellent ✔ High hydrolysis resistance for long service life ✔ Self-adhesive and easy to use ✔ Complies with fire standards FMVSS 302 and DIN 75200 ✔ Ideal for vehicle insulation, machine rooms and roller shutter boxes

Content: 0.5 m² (€33.00* / 1 m²)

Variants from €14.40*
€16.50*
Section of a sound insulation panel for sound transmission insulation with black felt surface Section of a sound insulation panel for sound transmission insulation with black felt surface
soni COMPOSITE
Color: black | Thickness: 32 mm
soni COMPOSITE sound insulation mat – effective sound insulation and sound absorption in one product The soni COMPOSITE sound insulation mat from soniflex is a highly effective combination of sound insulation and sound absorption. This acoustic product consists of a heavy plastic film (soni EVA) and high-quality acoustic foam with a decorative felt surface. This intelligent combination of materials reduces both airborne and structure-borne noise, resulting in a noticeable reduction in noise levels – ideal for use in living spaces, offices, workshops or technical facilities. Double effect – sound absorption & sound insulation While the soni EVA heavy-duty film reliably reduces sound penetration, the open-pored acoustic foam layer absorbs the sound within the room. This dampens the noise at its source and prevents it from spreading – a real advantage over single-layer materials. Typical areas of application: ✔ Partition walls & neighbouring walls in flats and offices ✔ Machine cladding & engine rooms ✔ Workshops & technical rooms ✔ Suspended ceilings & drywall constructions ✔ Music rooms & recording studios Use of soni COMPOSITE – versatile & effective The soni COMPOSITE sound insulation mat is particularly suitable for soundproofing walls and ceilings. Installed, for example, on the wall separating you from your neighbours or behind a facing shell, the material significantly reduces disturbing noises and ensures pleasant room acoustics. Thanks to its decorative felt surface, soni COMPOSITE is available in a range of colours – ideal when function and design are equally important. Easy processing & secure installation Processing soni COMPOSITE is straightforward and does not require any special tools: ✔ The mat can be cut to size precisely using a craft knife or scissors. ✔ The self-adhesive backing serves as an installation aid – however, mechanical fastening (e.g. screws, press studs or strips) is recommended for permanent attachment,     especially on vertical surfaces or for ceiling installation. ✔ Ensure that the substrate is dry, dust-free and smooth to ensure optimum adhesion. If necessary, you can cut soni COMPOSITE to the desired size with a craft knife. The self-adhesive backing serves as an installation aid. Tip: To create a clean finish at the joints, you can cover them with a wooden strip (8–10 cm wide) – this ensures a neat appearance and provides additional support. Safety & quality – tested for professional use soni COMPOSITE materials are age-resistant, moisture-resistant and free of fibres that are harmful to health. This makes this sound insulation mat a durable and safe solution for effective noise protection in both private and commercial areas.

Content: 0.5 m² (€68.40* / 1 m²)

€34.20*
Section of a PUR foam panel with black fleece surface Section of a PUR foam panel with black fleece surface
soni DECOR
Rear face: not self-adhesive (nk) | Thickness: 30 mm
Our soni DECOR acoustic foam consists of polyurethane- foam laminated with a sound-absorbing non-woven surface layer. The black polyester non-woven is extremely robust as well as oil- and fuel-repellent. Due to the resistant non-woven surface, soni DECOR is widely used in technical applications. For instance, soni DECOR is ideally suited for use as sound-absorbing and heat-insulating interior lining in mobile homes, classic cars or other vehicles. Also in your home workshop, soni DECOR will achieve an effective noise reduction. Using a carpet knife, you can cut soni DECOR to the required size and shape. The material’s low weight as well as the optional self-adhesive rear face make for easy and time-saving installation. For fixing the non self-adhesive version we recommend our soni SPECIAL ADHESIVE The premium soni DECOR soundproofing panel scores not only with its excellent sound-absorbing properties, but also with its outstanding quality. The first-class acoustic foam contributes to optimum noise reduction in all kinds of indoor and technical areas and provides optimum sound absorption efficiency. The DECOR sound-absorbing panel is particularly recommended for noise reduction in production halls, workshops, rehearsal rooms and recording studios. Also for reducing the noise emitted by vehicles or machines as well as in engine compartments, the soni DECOR noise absorption panel is the product of choice. Do you have questions about our soni DECOR soundproofing panel? Please feel free to contact us. We shall be pleased to provide help and advice!

Content: 0.5 m² (€33.00* / 1 m²)

€16.50*
Section of a black plastic heavy foil soni EVA Section of a black plastic heavy foil soni EVA
soni EVA
Rear face: not self-adhesive (nk) | Thickness: 1.5 mm
soni EVA – Elastic heavy layer for sound and vibration insulation soni EVA is a soft, elastic heavy layer based on EPDM/EVA polymers with an admixture of flame-retardant minerals. It is ideal for technical applications, vehicle construction and mechanical engineering, where vibrations, rumbling and sound transmission need to be reduced. High-quality properties of soni EVA ✔ Vibration damping: Reduces the rumbling and vibration of metal and sheet metal structures. ✔ Sound insulation: Prevents the transmission of noise and ensures a quieter environment. ✔ Mechanical & self-adhesive: The self-adhesive backing serves as an installation aid, especially for horizontal surface mounting. For vertical or overhead mounting,     additional mechanical fastening is recommended. Areas of application for soni EVA soni EVA is a proven material for: ✔ Vehicles: doors, bonnets, boot, interior trim. ✔ Mechanical engineering: covers, metal structures, vibration protection plates. ✔ Technical applications: sound insulation in workshops, industrial plants, metal structures.

Content: 0.5 m² (€28.80* / 1 m²)

€14.40*
Section of a black bitumen heavy foil soni HEAVY Section of a black bitumen heavy foil soni HEAVY
soni HEAVY
Thickness: 1.8 mm
soni HEAVY – Highly effective heavy bitumen layer for sound and vibration insulation soni HEAVY is an elastomer-modified heavy bitumen layer laminated with a transparent polyester film. This combination ensures a particularly robust, durable and sound-insulating surface – ideal for applications in vehicle construction, mechanical engineering and technical insulation. Thanks to its high density and material flexibility, soni HEAVY offers excellent sound insulation and effective vibration damping. It prevents metal surfaces from vibrating, booming and rattling, thereby specifically reducing sources of noise. Advantages of soni HEAVY at a glance ✔ Effective sound insulation & vibration damping → reduces both structure-borne and airborne noise ✔ High material density for maximum sound reduction ✔ Self-adhesive backing for easy installation ✔ Mechanically resilient & durable ✔ Can be combined with acoustic materials such as soni COMPOSITE or soni 491 STL ✔ Suitable for technical applications, vehicles and machinery Typical areas of application for soni HEAVY ✔ Vehicle construction: engine compartment insulation, door panels, floor panels ✔ Mechanical engineering: sound insulation for housings, bonnets, covers ✔ Enclosures & panelling: soundproofing of sheet metal and partition walls ✔ Building services engineering: insulation of heating systems, roller shutter boxes, ventilation ducts ✔ Combination with acoustic absorbers: for optimised sound insulation solutions Installation instructions for soni HEAVY The self-adhesive backing makes it easy to apply to smooth, clean and grease-free surfaces. However, for vertical or overhead installation, additional mechanical fastening (e.g. with pressure strips or screws) is required to ensure permanent secure adhesion.

Content: 0.5 m² (€31.00* / 1 m²)

€15.50*

Description

Ein alter VW-Bus steht auf einer Wiese, Ein Mann und eine Frau sitzen bei geöffneter Tür im Auto und genießen die Zeit
Ein leuchtend blaues Auto steht auf der grünen Wiese
Ein Motorboot fäht im Sonnenuntergang über den See
product stack of grey and black Sheets of acoustic foam


Noise and heat insulation for cars | motorhomes | boats

When using motorized vehicles, loud engine noises, constant roaring or annoying clattering sounds often put an end to driving fun. Especially older vehicles often generate unnervingly loud noises. The remedy of choice here is to install heavy layers or a robust sound insulation material to prevent sheet metal parts, such as the vehicle’s floor or doors, from booming and vibrating. Our sound-deadening layers will stop sound waves from spreading throughout the vehicle. Thanks to their low thickness, our heavy layers (anti-drumming panels) soni HEAVY and soni EVA can be used also in places where space is limited.

We offer effective soundproofing solutions tailored to the specific requirements of vehicles, motorhomes and boats. soniflex acoustic products and soniflex acoustic foams are characterised by excellent sound-absorbing properties as well as thermal insulation, whilst meeting the automotive standard for flammability in accordance with FMVSS 302. The individual soundproofing mats can be easily cut to size, allowing them to be adapted without difficulty to the respective surfaces and their dimensions. The soundproofing mats are manufactured from high-quality materials. They can also be combined perfectly with other products from our shop.

A heat shield made from soni 1116 ALG is suitable for use in engine compartments, areas around or above the exhaust system and the catalytic converter, as well as for other locations that need to be protected from radiant heat. The fibreglass material is particularly popular in the area of the transmission tunnel and the exhaust system due to its high temperature resistance of up to 450 °C. In large machines, such as tractors or engines that generate a great deal of heat, soni 1116 ALG provides optimal insulation against the flow of heat between the engine compartment and the vehicle interior. Furthermore, the aluminium surface offers excellent protection against the ingress of oil, water and other liquids.

Icon cogwheel, cloud and coat of arms in orange

Testimonials

Sound insulation of a car/ motor

One of our clients tells us about sound-proofing his car: For the sound insulation of the motor compartment of a Caterham Super Seven, the acoustic panels soni WAVE, 30 mm, without self-adhesive rear face, were applied to the inside of the car body in the motor compartment. The result: Very satisfactory!!

Our recommendation for soundproofing a car or vehicle:
If there are any openings between motor compartment and passenger compartment, we recommend sealing them, because even small gaps affect the sound insulation. Please note: soni WAVE is resistant against cold and heat from -40°C to +100°C.

Creative use of the soni desk partition - as impact protection in the garage

I have repurposed the soni DESK PARTITION and mounted it as impact protection on the wall in our garage. Our children like to rip open the car doors quickly before you have really got out - paint damage is guaranteed. The soni DESK PARTITION WALL was easy to fit and is soft enough to reliably protect the car doors thanks to the sound-absorbing material. Installation with the WIKO spray adhesive was also super easy and holds rock solid.
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Motorhaube
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Kleines rotes Rennauto
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Tischtrennwand als Türstoßschutz
Tischtrennwand als Türstoßschutz
Tischtrennwand als Türstoßschutz
Tischtrennwand als Türstoßschutz
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Motorhaube
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Kleines rotes Rennauto
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Tischtrennwand als Türstoßschutz
Tischtrennwand als Türstoßschutz
Tischtrennwand als Türstoßschutz
Tischtrennwand als Türstoßschutz

Sound-deadening of a boat engine

Our client writes about his experiences with sound-deadening a boat engine:

In the scope of the complete overhaul of my 40-year old cabin cruiser I replaced the inefficient four-cylinder engine with a Mercedes-built diesel engine. My biggest worry was how to sound-proof the engine because the only thing separating it from the driver's cabin was a maintenance access cover.

So I built an accurately fitting engine cover out of 16-mm plywood and lined the entire engine compartment as well as the cover with soni WAVE sound insulation panels 50 mm not self-adhesive. To fix the material on the wood, I used soniflex special adhesive. The sound-insulation panels were very easy to cut with an ordinary carpet knife or a handsaw.

Diesel engines are known to cause quite a lot of noise in a rather unpleasant frequency range. I was positively surprised how much of the noise the soniflex noise control panels managed to absorb.

At the moment, the boat with the sound-proofed engine still sits on a trailer in the boathouse. A friend, with whom I shared the sound-deadening material ordered from soniflex, told me that the noise level would be further reduced once the boat was in the water. I am truly impressed with the effectiveness of your soni WAVE sound insulation panels in sound-proofing a boat engine and will gladly recommend your product.
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube
Schallschtzplatte aus PUR--Schaum soni WAVE eingebaut in einer Haube

Other information

Soundproofing with sound-absorbing mats – less noise in rooms, cars or boats

Excessive noise and disruptive sound can quickly become a nuisance, not only indoors but also in vehicles, boats or machinery. However, with the right sound-absorbing mats and heavy-duty foils, noise levels can be effectively reduced – for greater comfort, better acoustics and a more pleasant environment.

At soniflex, you will find a wide selection of high-quality sound insulation and soundproofing products: from flexible foam mats to high-performance heavy-duty foils. These are ideal for insulating walls and ceilings – but also for use in technical applications such as cars, boat engines or machinery.

Soundproofing your car or boat yourself – less noise, more driving comfort

Soundproofing your car or boat offers huge benefits, particularly for hobbyists and DIY enthusiasts: by strategically using soundproofing mats in the car or heavy-duty foil in the engine compartment, vibrations, rumbling and engine noise can be significantly reduced.

Whether you want to make your car quieter, soundproof your boat engine or minimise annoying noises in the cabin – with the right materials, you can achieve noticeable improvements:

✔ Reduction in engine and road noise
✔ Less vibration (dampening of rumbling)
✔ More pleasant conversation and greater enjoyment of music in the vehicle
✔ Greater comfort on long journeys or out on the water


Sound insulation even at high temperatures – solutions for high-temperature areas

For applications in high-temperature environments – such as in the engine compartments of cars or boats – a heat-resistant solution is essential. The soni 1116 ALG glass fibre sheet offers the ideal combination of sound insulation and heat protection.

It is particularly suitable for:

✔ Engine compartment insulation in cars and boats
✔ Machinery with high heat generation
✔ Technical applications with elevated temperature requirements

The robust glass fibre structure, combined with an aluminium laminate, allows for use even under demanding conditions – without compromising on sound insulation.

Our soni HEAVY and soni EVA soundproofing films are also particularly popular for sound insulation; thanks to their thin material thickness, they can be easily installed even where space is limited. They can be cut to size flexibly and applied directly to suitable surfaces – ideal for doors, bonnets, boot lids or boat hulls.


The right soundproofing solution for every application

To ensure that sound insulation is as effective as possible, choosing the right material is crucial. Depending on the application – whether in a building, vehicle or machine – requirements such as temperature resistance, material thickness and flexibility vary. You should therefore always take into account the specific product properties and the intended application when selecting your soundproofing mats and heavy-duty sheets.

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description
testimonials