Where does the noise come from in the car? Sources are divided into external and internal. The first – the noise of the wheels and road surface, wind, noises from other cars. The internal sources are noises from the transmission and power plant, vibration of the suspension and engine, and interior plastic. In general, the noise level in the cabin is composed of the age of the car, driving dynamics, technical serviceability, as well as the above-mentioned internal and external sources of noise. Noise isolation is designed to minimize these shortcomings. In addition, this type of tuning protects against corrosion and increases passive safety. Well, if the car is already in a very bad condition, it is easier to recycle it. Besides, you will get good money for it: https://scrapmycarnear.me.
The pros of noise isolation
The advantages are obvious:
Extraneous sounds will not penetrate into the interior of the car, nothing will distract from the driving process, the level of comfort will increase.
Lovers of quality sound will be pleased with the rich and deep sound, even if the audio system of average quality.
Lowering the center of gravity will improve handling, since most of the material is placed on the floor.
During installation you will be able to objectively assess the condition of the body parts.
The temperature in the cabin will remain unchanged for a long time. In winter, the air in the cabin will cool down more slowly, and in summer – warm up.
The doors will close tighter.
Disadvantages of noise insulation
The disadvantages include an increase in weight of the car and, accordingly, an increase in fuel consumption. In case of low-quality work, you can get a deformation of the body parts, for example, the sagging of the doors, raised edges of the mats, which will interfere when pressing the pedals. Noise insulation in the door can trap water and lead to corrosion. If the car is under warranty, having it soundproofed may be a reason to deny free service.
How to carry out noise isolation of the car with my own hands?
Despite the risks, it is quite possible to carry out noise insulation with your own hands. The main thing is to approach the process thoughtfully and without rushing. To noticeably reduce the noise level, you carry out full noise isolation, including gluing with noise- and vibration-absorbing materials for doors, floor and ceiling. Insulating materials are also applied to the wheel arches, trunk, gluing the bulkhead of the engine compartment. Perform noise insulation yourself can be in parts: doors, floor, trunk, and so on. You will need an industrial hair dryer, scissors, a roller and solvent. The most important part – the choice of materials for noise insulation.
Types of noise insulation materials
Materials used for noise insulation are widely available on the market, divided into vibrodepmfer, serving to absorb vibration, sound absorption materials, thermal insulation and materials against squeaks:
Vibroplast Silver and Gold differ in thickness, the first is 2 mm, the second is 2.3 mm. Accordingly, the level of vibration absorption is higher in the vibroplast Gold. The material has a self-adhesive backing, suitable for complex reliefs. It does not require heating with a hairdryer. It is used for gluing of doors, trunk, hood.
BiMastBomb and BiMast Standard are made on the basis of bitumen and mastic material, they differ in the presence of a foil, missing in the second material.
VizoMat is made of bitumen, has a self-adhesive basis, and requires a construction hair dryer.
Accent is used for sound absorption, is a layer of polyurethane foam and metallized film. It is held in place with an adhesive backing. It is used to insulate the engine compartment, trunk lids and hood.
Bitoplast has a noise-absorbing effect and is also used as a sealant. Bitoplast is a polyurethane foam on an adhesive basis with a special impregnation. It comes in 5 and 10 mm thickness.
Isolon – special purpose foam, used to absorb unnecessary noise.
- Soundproofing materials are applied as the second layer on the soundproofing materials.
Splen is a polyethylene foam with a sticky layer, with its help the engine compartment and wheel arches are glued. 4.
Bitoplast – we talked about it above.
Madeline – sealant, used to eliminate gaps and for decorative purposes.
- Liquid noise insulation is used for processing the underbody and wheel arches, as well as an additional anti-corrosion coating. It is applied with an aerosol or brush.
Variations of different manufacturers are possible, but the technical and performance characteristics are about the same for these types of materials.
For maximum effect, pre-treat for corrosion. Also take care in advance about the instructions for disassembling the interior of the car, study videos on installation, the characteristics of the materials used and the subtleties of working with each of them.