The picture shows the 3-door version of the body.
The picture shows the 5-door version of the body.
Expanding foam seals are used in various hidden cavities of the body to improve the characteristics of the car. These seals increase in volume during the painting process when assembling the car and tightly fill the cavity space. Seals are used in various places of the car.
The main task of these seals is to isolate the car interior from noise and vibration, especially from road noise. Soundproof seals are placed so that they hinder the amplification of sound in this element of the structure and help to reflect sound waves of road and aerodynamic noise from the car body.
Another function of acoustic seals is to seal closed cavities from the ingress of water, air, dust and gases.
[The article was copied from the website: lrman.ru]
Another advantage of using foaming materials inside cavities is a significant increase in the rigidity and strength of body elements, improving safety in the event of a collision.
Foaming seals are produced on the basis of expanding synthetic rubber Betacore 4300.
All foaming seals are applied to the unpainted metal body, and during the heating process after painting they expand, increasing in volume up to eight times.
Replacing seals
Since the heating temperature of parts during painting during repair operations is significantly lower than during factory painting, a different technology is required when replacing seals during repairs. When replacing soundproofing materials, the following procedure should be followed.
If a repair involves replacing a part treated with foam material, the cavities of the new part must also be treated with sound-absorbing filler. The acoustic filler should be applied after painting and applying protective wax to the inner surfaces of the cavities.
The available cavities that should be filled with acoustic filler are shown in the following figures. When applying the foaming material, it should fill the entire space of the cavity.
Injection points for foam sound-absorbing material - 3-door version
The joints of the parts located symmetrically to those shown in the figure are also subject to processing.
- 1 - Joints of the "A" pillar reinforcement panel with the inner threshold panel reinforcement
- 2 - Joints of the "B" pillar reinforcement panel with the inner threshold panel reinforcement
Injection points for foam sound-absorbing material - 5-door version
The joints of the parts located symmetrically to those shown in the figure are also subject to processing.
- 1 - Joints of the "A" pillar reinforcement panel with the inner threshold panel reinforcement
- 2 - Joints of the "B/C" pillar reinforcement panel with the inner threshold panel reinforcement
- 3 - Joints of the outer panel of the wheel arch with the outer panel of the body side
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