After a window glass is damaged, it should be replaced with a piece that matches the original curvature. Inspect the glass guide groove and the sealing strip for any signs of wear or damage. It's important to note that windows may not always return to their original shape after repairs. Therefore, in addition to ensuring the glass can be smoothly raised or lowered, you should also check the tightness around the glass once the window is closed. A good seal ensures both comfort and protection from external elements.
When replacing the roof, start by applying a layer of conductive sealant around the press-fit area. After welding, apply folded edge glue in the flow tank and joints. This not only improves the body’s overall sealing but also prevents rust caused by water accumulation at the flange welds. When assembling the door, attach a whole piece of sealing isolating film to the inner panel below the window. If such a film isn't available, ordinary plastic sheeting can be used as a substitute. Once applied, press and compact the film before proceeding with the interior panel assembly.
When repairing a door with a sealing flange, take care to properly restore the original shape of the flange. Any damage should be repaired accurately to maintain the integrity of the seal. After the repair, perform a sealing test by placing a piece of cardboard on the sealing area, closing the door, and pulling the paper out. The resistance required to pull the paper indicates the quality of the seal. If too much force is needed, the seal is too tight, which may affect the door’s operation and cause long-term deformation. If the force is too low, it suggests poor sealing, which could result in wind noise or reduced insulation. When replacing a door, make sure to apply edge glue to both the inner and outer flanges of the new door and cover any small process holes left during stamping with base tape.
When working on car lines, ensure all body holes and wire harness seals are properly in place. These seals serve not only to prevent leaks but also to protect the wiring harnesses inside. If a seal is damaged or if the harness moves freely within the seal, replace the seal and secure the harness using the body hole and hole to prevent movement and potential damage.
When replacing the entire body, in addition to the above steps, apply a layer of sealant to the lap joints and welds. The sealant should be about 1 mm thick and free of bubbles or excessive viscosity. Special folded edges should be added where necessary. Apply a 3–4 mm layer of elastic coating and anti-corrosion material to the bottom of the floor and front wheel cover. On the top surface of the floor and the inner part of the front panel, affix soundproofing, heat-insulating, and vibration-damping films, followed by insulating felt and finally carpeting or interior decoration. These steps significantly improve the vehicle’s sealing performance, reduce corrosion, and enhance ride comfort, making the driving experience more pleasant and durable.
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