The installation and maintenance of automotive seal strip.

Spring Festival is approaching, in cold the winter, will the driver notice cold infiltrating through car, accompanied by occasional wind noise, it seems the door isn’t closed tightly. At the time the driver will have to check the seal strip. Seal strip can improve the air-tight and prevent wind and rain penetrated inside. Once the seal strip occurred damage for aging will caused inside leaking and increases the wind noise of vehicles and leaking is also very easy to make the body rust. It is not difficult to find the seal is an important spare part and should maintenance and checks in regular time. There are now a number of professional shop of Seal strip of vehicle, tailored for different models, the precise matching of the original car curvature and slope of the curve, to ensure the continuity between various parts of car body and to avoid a separation of air at convergence, which can easily dissolve cycle wake-effective, reduce the high-speed wind noise and enhance original car's the capability air-tight and dust-proof at the same time.
Sealing a few key locations
Before install the glass of doors and windows of vehicle, carefully remove the debris within the slot, such as mortar, brick dust, such as wood. Glass should be placed on carefully, be uniformed on both sides of the gap and be fixed in time to prevent the collision shift and depart from the center slot. Rubber seal can not be too tight and the prepared length should be longer than the assembly length by 20-30mm. The seal strip should be put in correct place and should be flat surface, which is helpful to contact glass, glass slot closely and to make the force evenly around the glass. Seal strip in the corner should be disconnected and adhesive the disconnected place firmly. Before fix the glass with sealant, first the glass to squeeze glass with rubber strip or rubber pieces and leave injection gaps. Plastic injection depth should be not less than 5mm, to keep the glass from vibration in the pre-curing of adhesive.
Sealing of the front edge, the back edge and the side edge: Propping the hood up and pasting the front, side and back along the edge in line with the body, then we can effectively seal the gap the hood and the gap between the bodies. When vehicle rides on road, it can accelerate the air pass through intake to improve heat dissipation. At the same time, it can reduce the friction between the hood ,the front parts of vehicle, the left and the right fender and reduce the friction caused by the bump and noise. If a larger gap, you can paste a two-tier.
To seal the gaps between four doors and body of vehicle can effectively improve sealing performance and reduce wind noise. The improved performance of sealing can helpful to prevent dust, rain from entering driver’ cab and improve the efficiency of air-conditioning refrigeration. Carefully to paint the inside of the door with the special glue and the cut seal strip is also coated with special glue, and then along the inside of the door ring seal affixed.
To paste around the roof of vehicle can effectively improve the sealing, waterproof and dust. To wrap up air-conditioning cooling pipe can increase the efficiency of refrigeration. There are gaps between interior panels and the door of car, the instrument panel, storage boxes and other interior car parts. Due to the limited precision of processing and assembly and other reasons, vehicles often have friction and when vehicles ride different speeds it will cause resonance , Resulting in an upset of the noise. In general, the noise is difficult to find. In fact, if we know the reasons, what you need to do just use seal strip to fill these gaps.
When to repair the door with sealing flange, you should pay attention to repair the damaged sealing flange and to accurately restore the original shape of the flange. After the repair of the door, you should inspect the sealing of the door. Inspection methods: put a hard disk on a sealing position, close the door and then pull the paper to judge whether or not a good seal according to the pulling force. If the paper need to pull with excessive force, it shows the sealing is tight seal, which will affect closing the normal door, and will make the seals being deformed and quickly loss its property. If the paper needs to pull off with small force, that shows its bad sealing, the door will shelter from wind but do not shelter from rain. when replace the door, you must pay attention to the inside and outside flange occlusion and paste it with hemming adhesive and block the small holes left for pounching with base tape.
Pay attention to several sealing locations
When window glass is damaged, you need change the glass with the same curvature of the glass and check if the slot and seal have been damaged. As the windows often can’t return to its original shape after repair, so except we should ensure to easily pull or lift the window glass, they also have to notice the sealing around the windows after the closure of the glass windows. If the gap between the glass and the glass slot is unequal, rubber strip and glass and the slot of glass can’t contact well ,protruding out the slot of glass, can easily be pull off with your hand.
When you replace the roof of car, first of all, you should paste a layer of conductive sealant in the surrounding of compression location. After welding, you should paste all the water tank and the seams with hemming adhesive, which will not only help to the sealing of the car body, but also prevent from creating early rust for stagnant water.
In the replacement of the entire body, in addition to the above-mentioned items, you should also paste on the parts soldering connection and soldering point with a layer of sealant, the thickness of the layer should be about 1mm, and may not have a virtual sticky layer , Defects such as bubbles; Flap Department should be painted in the exclusive use of plastic Flap; the entire surface of the floor under the front hood and under the surface should be coated 3mm-4mm of anti-corrosion coatings and elastomeric coating; these measures will not only greatly enhance the whole Tightness of the car body and slow down the speed of corrosion, but also greatly enhance comfort.
Day-to-day maintenance
First, to check whether can find the large cracks or breakage, If you find it, you can use binder to repair. In particular the use of special adhesive seal, it is easy to be able to fill large cracks. Of course, if the seal of serious breakage or a larger degree of aging, it would be better to replace a new seal. To replace seal strip is not difficult, but you’d better let professionals complete.
Everyday maintenance work include the following: Firstly, to wash cars with car detergent and paint a layer of protective agent of high permeability in order to prevent seal strip from aging after cleaning. In addition, the gap between the seal easily filled with sand and dust, which will cause corrosion, so you should clear the dust or other thing with brush.
Seal strip is an important part of doors and windows, it can ensure air-tight of doors and windows, waterproof, soundproof and other aspects. At the same time, if it is a reliable guarantee for glass in windows and doors if pressed by outer forces. Due to the impact of climate and sunlight, seal strip would be some shrinkage, aging, deformation and, therefore, not allowed to be sealed in a state of tension, should be maintain its free status. During the installation process, in order to firmly stuck to the glass, some people always get used to stretching the seal strip closely and can not guarantee a free state, so that in a state of tensile deformation. Practices have proved that the seal strips, which be installed in a state of tensile deformation, have been seal off, snap, crack and so on. To this end, when we install the seal strip , seal strip should be a little longer than the assembly length of the doors and windows. in the corner ,you should cut it off in slope, stick it with a strong adhesive and leave sufficient margin expansion.