SOUNDPROOFING • ACOUSTICS • THERMAL • CAR AUDIO
Sound & thermal insulation
for cars and car audio
Improve the acoustic comfort and performance of your
audio system with our soundproofing sheets, Alubutyl,
acoustic foam, multi-layer insulation, and kits for doors,
trunks, floors, and body panels.
CAR SOUNDPROOFING
Reduce vibrations, resonances, and unwanted noise
Automotive soundproofing treats
different parts of the vehicle to limit panel
vibrations, certain resonances, and noise transmission.
In car audio, it also helps create an environment
more conducive to speaker performance.
Alubutyl
Anti-vibration treatment
Foam
Acoustic treatment
Multi-layer
Combined solutions
Thermal
Additional insulation
SOUNDPROOFING MATERIALS
Which insulation should you choose for your car?
Not all materials serve exactly the same purpose.
A complete installation may combine several layers to
address vibrations, noise, and contact between trim panels.
Alubutyl sheets
Butyl- and aluminum-based sheets are primarily
used on metal surfaces to dampen their
vibrations and limit certain bodywork resonances.
Acoustic foam
Acoustic foam is used as a complementary layer
in different areas of the vehicle. Depending on its design,
it can help with acoustic treatment and limit
contact or noise between components.
Multi-layer insulation
Multi-layer materials combine several properties
in a single product and can simplify certain
acoustic treatments depending on the area of the vehicle.
Thermal insulation
Some products are specifically designed to complement
the vehicle's thermal treatment. Their use depends
on the area being treated and the material's characteristics.
CAR AUDIO SOUNDPROOFING
Why soundproof doors for car audio?
A car door consists of large metal surfaces
and trim panels that may vibrate. Treating the sheet metal
and trim can reduce unwanted vibrations and provide
more stable support for the speaker. This is particularly
beneficial when replacing the original audio system.
AREAS TO TREAT
Where should soundproofing be installed in a car?
Doors
Speakers & vibrations
Trunk
Subwoofer & bodywork
Floor
Road noise
Trim panels
Unwanted noise
DOOR SOUNDPROOFING
A particularly important treatment for speakers
Doors are often the first area treated during a
car audio upgrade. Proper preparation helps limit
vibrations and improve the operating conditions
of the woofer or component kit installed in the door.
Anti-vibration door sheet metal
A damping material such as Alubutyl can be applied
to metal surfaces to reduce their tendency
to vibrate when the speaker is operating.
Trim & acoustic foam
A suitable second layer can be used behind
certain trim panels to limit contact,
vibrations, and unwanted noise, depending on the configuration.
CAR ALUBUTYL
Dampen bodywork vibrations
Alubutyl is widely used in automotive audio installations
to treat metal panels. The collection includes
different thicknesses and treatment surfaces, including
CTK, Four-Connect, Hifonics, and Auto-Connect solutions.
CAR SOUNDPROOFING GUIDE
How to choose your soundproofing
Start by determining the area to treat and the problem you want to address:
panel vibration, trim noise, door acoustic
treatment, trunk treatment, or additional insulation. The material
and its thickness must then be suited to the available space.
✓ Area — door, trunk, or floor
✓ Objective — vibration or noise
✓ Material — Alubutyl, foam, multi-layer
✓ Thickness — check the available space
✓ Surface — required quantity
✓ Installation — sheet or complete kit
Prepare the surface properly before installation.
For adhesive products, the surface must generally be
clean, dry, and properly degreased. Then carefully
apply the material to the intended area, following the
manufacturer's recommendations. Good adhesion is essential
for a long-lasting treatment.
DOOR SOUNDPROOFING KITS
Individual sheets or complete kits
The collection allows you to buy either a sheet for a specific
area or sets designed to treat a larger
surface. Specific door kits are also
available to make a complete car audio installation easier.
Individual sheets
Practical for completing an installation, treating a small
area, or testing different materials before performing
more extensive soundproofing.
Door kits
Kits provide all the materials needed
for door treatment and are an attractive solution
when installing a new speaker kit.
AUTOMOTIVE SOUNDPROOFING EQUIPMENT
CTK, Four-Connect, Hifonics, ESX, Musway & Gladen
Find a wide selection of soundproofing and automotive
acoustic treatment solutions at Sound Auto Concept:
anti-vibration sheets, Alubutyl, acoustic foam,
multi-layer insulation, thermal insulation, and complete kits.
FREQUENTLY ASKED QUESTIONS
FAQ – Car Soundproofing
What is car soundproofing used for?
It is used to treat certain vibrations,
resonances, and noise transmission in different parts
of the vehicle.
Why soundproof doors for car audio?
Door treatment reduces unwanted vibrations
from sheet metal and trim panels and helps create a more
stable environment around the speakers.
What is Alubutyl?
It is a damping material that generally combines
a butyl-based layer with an aluminum sheet.
It is commonly used to dampen vibrations
from automotive metal panels.
Where can Alubutyl be applied in a car?
It can be used on various suitable surfaces,
including door sheet metal, certain areas of the trunk
or floor, depending on the product and the treatment's objective.
What is the difference between Alubutyl and acoustic foam?
Alubutyl is primarily used to dampen panel
vibrations, while acoustic foam serves a
different purpose and can be used as a complementary layer.
What insulation thickness should you choose?
It depends on the area being treated, the available space
and the type of material. A greater thickness is not
automatically suited to all areas of the vehicle.
Can you soundproof only the front doors?
Yes. For a car audio upgrade, starting with the doors
housing the front speakers is a common approach
before potentially extending the treatment to the rest of the vehicle.
Should you use several layers of insulation?
Several complementary materials can be used,
as an anti-vibration layer and foam do not serve
exactly the same function. The combination depends on the area and the desired result.
How many sheets are needed to soundproof a car?
It depends on the actual area being treated and the dimensions
of the sheets. For doors only, a dedicated kit can
make the calculation easier. For a complete vehicle, measure the
different surfaces before ordering.