When repairing the car line, all the body holes and holes should be installed in place, because these seals not only play a sealing role, but also play a role in protecting the wire harness. If the sealing ring has been damaged or the wiring harness can turn or move in the sealing ring, the sealing ring should be replaced, and it is firmly equipped with the body hole and hole, and the wiring harness is stable.

After the window glass is damaged, it is necessary to replace the glass with the same curvature as the original window glass, and check the glass guide groove and seal for damage. Since the window often does not return to its original shape after repair, in addition to ensuring that the window glass can be easily pulled or lifted, attention should also be paid to the tightness around the window glass after the window is closed.

When repairing a door with a sealed flange, attention should be paid to repairing the damaged seal flange and accurately restoring the shape of the original flange. After repairing the door to check the sealing, the inspection method is: put a piece of cardboard on the sealing position, close the door, and then pull the paper, according to the size of the tension to determine whether the seal is good. If the force required to pull the paper is too large, it indicates that the seal is too tight, which will affect the normal closure of the door, and will also cause the seal to lose the sealing performance faster due to excessive deformation; If the force required to pull the paper is too small, it indicates that the seal is poor, and there is often a phenomenon that the door does not block the rain. When replacing the door, be sure to apply hem glue at the flanging bite of the inner and outer plates of the new door, and block some small process holes left in the stamping process with this base tape.

When changing the roof, a layer of conductive sealant should be applied to the pressing place around the roof first, and then the flange glue should be applied to the flow tank and the joints after welding, which not only helps the body seal, but also prevents the body from early rust due to the water accumulation at the flanging weld. When assembling the door, a whole sealing isolation film should be pasted on the inner plate of the door below the window. If there is no formed sealing isolation film, ordinary plastic paper can be used to replace it, and then the sealing insulation film is pasted and compacted, and finally the interior board is assembled.

When replacing the entire body, in addition to completing the above items, a layer of sealant should be applied to the lap part of the weld and the solder joint. The thickness of the adhesive layer should be about 1mm, and the adhesive layer should not have defects such as virtual adhesion and bubbles. Special folding glue should be applied at the hem; 3mm-4mm elastic coating and anti-corrosion coating should be applied to the entire floor surface and the front wheel cover surface; The upper surface of the floor and the inner surface of the front panel should be pasted with sound insulation, heat insulation, vibration damping film, and then spread on the heat insulation felt block, and finally spread on the carpet or installed on the decorative floor. These measures can not only greatly enhance the tightness of the vehicle and slow down the corrosion rate of the body, but also greatly improve the ride comfort.

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