Sound insulation

How to make your car quieter and more comfortable.

Driving pleasure and comfort while operating a vehicle consist of a number of components:

The smoothness of the car's suspension, the dynamism of steering control, and the convenience of road and peripheral visibility. The amount of noise entering the cabin also plays a major role in comfort. When driving most budget-manufacturer cars, road and ambient noise in the cabin becomes unpleasant or even annoying. Whether driving on the highway or in the city upon reaching a speed of 50-70 km/h, the amount of noise can be significantly reduced if you treat the car with special sound insulation for cars.

A natural question arises: why doesn't the manufacturer do this right away? The answer is the competitive price of the car. In production, the cost consists not only of the price of the sound insulation material but also its application. The actions for assembling a car on the assembly line are calculated in minutes, and performing quality sound insulation takes a significant amount of additional time. Another reason is that the total weight of the car increases by several dozen kilograms.

Where does noise come from?

The nature of perceptible sound is the vibration of elastic waves in space. Given that the car body is usually made of metal with a complex profile (individual parts can be hollow), it is an ideal environment for the movement of sound waves, resonance from vibration, and the random wandering of reflected sound. Sound vibrations in a car are divided into airborne and structure-borne. Airborne noise is caused by air, structure-borne noise by the vibrations of solid materials.

Therefore, to achieve good results, it is necessary to have sound insulation for cars installed in the vehicle.

Vibration insulation

Vibration insulation's purpose is to dampen the resonances of flat surfaces (the so-called drum effect). For this, bitumen mastic with various additives is usually used so that this material does not harden and stop working at sub-zero ambient temperatures. This is very important when choosing vibration insulation. Bitumen sheets from cheap manufacturers harden into stone in winter and do not perform their function; even worse, they crack and crumble due to vibration.

How does it work? The resonant frequencies of metal, plastic, bitumen, and aluminum materials are different. Therefore, when these materials are glued one on top of the other, they dampen each other, resulting in the desired effect. The greater the thickness or number of layers of such materials, the greater the damping effect, but it should be remembered that these materials are not light, so the weight of the car parts also increases rapidly. So, if you are going to glue vibration insulation material to the trunk lid, evaluate that the lid's gas struts will have to overcome all the additionally added weight so that it does not lower itself on its own.

Sound insulation

At this stage, the goal is to maximally dampen wandering noise reflections in the medium and high-frequency range. The most effective sound insulation—a special material for that purpose—is felt or pyramid-shaped sheets. But it must be remembered that due to the temperature difference, moisture condenses on the surfaces of car parts, and inside the doors, when it rains, direct water flowing from the glass also appears.

Therefore, before purchasing sound insulation materials, it is recommended to choose responsibly or consult with specialists at the Autogarsas salon or service center. To avoid such unpleasant moments when, just as you start enjoying the results of sound insulation for cars, unpleasant odors do not appear in the car after the first rain or damp weather. In such places, closed-cell materials are used, the moisture absorption of which is minimal.

Squeak insulation (Antisqueak) is usually a thin adhesive synthetic fabric that eliminates the squeaking or rustling noise emitted by two surfaces during contact. E.g., dashboard parts, door trims, etc.

Sound insulation. Vibration insulation. Adhesive sound insulation. All these products, when professionally installed in your car, will reduce noise, which is not only unpleasant but can also cause serious health problems. Solve them with good sound insulation materials for cars, and you will have guaranteed additional comfort during your trip. While driving, you will feel less vibration, you will not hear the squeaks caused by parts touching each other, and you will not be disturbed by extraneous noise from the street or engine compartment. It will become easier to talk in the car, you will be less tired, and nothing will distract you while driving.

At our Autogarsas salon, you can purchase high-quality sound insulation and vibration insulation products.

Vibration insulation

Vibration insulation reduces vibrations in cars and rooms, improving sound quality.

Wall sound insulation

Wall insulation protects against noise between rooms and improves the acoustic environment.

Acoustic foam

Acoustic foam is designed for reducing echo and managing sound dispersion in various spaces.

Completed sound insulation work – gallery

The gallery presents examples of sound insulation work, reflecting quality and experience.

Car sound and vibration insulation installation

Professional car sound insulation installation ensures less noise and a more comfortable journey.

Related categories

Sound insulation is usually installed together with a sound system upgrade:

• Subwoofers — in an insulated body, the bass sounds precise and without rattling.
• Car speakers — insulation reveals their true quality.
• Insulation installation service — we perform the work at our service center in Kaunas.