Installation and maintenance of automotive sealing strip

In the cold winter , the owners will notice whether directly immersed in cold car, occasionally accompanied by wind noise , I feel like the door is not closed tightly same. So this time we have to check the seal it. Airtight seal can be improved to prevent rain from entering the inner compartment . Once the seal breakage aging will cause the car leaks , increasing the car's driving wind noise , leaks and very easy to make body rust. It is not difficult to see , the car , the seal is an important part , the usual maintenance checks must periodically . There are now many professional vehicles sealed shop for different models tailored to exactly match the original car curve slope and curvature of the curve , to ensure continuity between the various body parts to avoid flow separation to produce binding sites , easily resolved periodic tail flow , can reduce wind noise at high speeds , while enhancing the original car 's airtight and dustproof capabilities.

Sealed several key positions

Before installing the glass doors of the vehicle to clear the debris carefully notch within such as mortar , brick dust, wood , etc., should be placed carefully on the glass , ensuring that both sides of the gap is uniform and timely than the positive fixed to prevent collisions shift deviate from the slot center. Rubber seal can not pull too tight , cutting length longer than the assembly length 20-30mm. When installing the mosaic in place, flat surfaces , and glass notch in close contact , so that the glass surrounding the force evenly. In the corner of the rubber should be beveled off and disconnect the injection of glue at the firm . When caulk sealant fixed glass , you should use rubber or rubber block glass and choked , leaving voids plastic injection , plastic injection depth should not be less than 5mm, before the glue curing , the glass should be kept free from vibration.

Vehicle frontier sealed trailing edge and side edge seals: support from the hood, on the hood front, rear and along the side edges of the anastomotic site and the body paste , you can void between the hood and the body effectively sealed vehicles on the way, can accelerate the air from the intake gate through improved thermal performance. At the same time , you can reduce the hood and the front part , the friction between the left and right front fender , reducing noise and friction caused by the bump . If the gap is large, you can paste layers.

Four doors and through the gap between the sealing body , the sealing performance of the vehicle can be effectively improved to reduce wind noise . Improve sealing performance can also prevent dust , rainwater into the cockpit to improve the efficiency of air conditioning and refrigeration . Carefully coated with special glue on the inside of the door , will cut a good seal side also coated with special glue, and then the door inside door seal affixed along the circle .

On the roof around the paste , can effectively improve the seal, dustproof and waterproof ; wrapped pipes for air conditioning and refrigeration , can improve the cooling efficiency. Between the door trim panels and the gap between the dashboard , storage boxes and other interior parts of the car , because the assembly and machining accuracy and other reasons, there is often friction , vehicle process will cause resonance at different speeds generate disturbing noise, which is generally very difficult to find . In fact, know the reason, as long as the seal to fill these gaps , paste.

When the door flange seal repair , the repair should be noted that damage to the sealing flange , the flange accurately recover the original shape . After repairing the door seal to conduct inspection , inspection methods are: put a piece of cardboard in a sealed position, close the door , and then pull the paper , according to the Rally to determine the size of the seal is good. If the force required to pull the paper too much explanation sealed tight , it will affect the normal shut the door , and also due to deformation of the seal over the Omo rapid loss of sealing performance ;bolt seals If the force required to pull the paper through the small , indicating poor seals , often have no doors windshield rain phenomenon. When replacing the door must pay attention to the inner and outer door panels in the new bite at the painted folding plastic cuffs and put some holes left when punching with the base tape blocked .

Note that when the sealing repair in several places

In the rear window glass damage , changing the original window glass with the same curvature of the glass , and glass to check the guides and seals for damage. As the windows after repair often reply less than its original shape , therefore , when in addition to ensure easy pulling or lifting the window glass , but also pay attention to the rear window glass in the windows closed around the seal. If the glass with glass notch uneven gaps , rubber and glass tank exposed, protruding notch glass , hand seals can be easily pulled off .

When changing the roof , the roof should be painted in the periphery of the laminated layer of conductive sealant , to be in the water tank and then weld seams and hems over painted plastic, which not only helps the body sealing , more prevents water body due to flange welds produce early rust.

When replacing the entire body , except for the above projects should be completed , but also on their part and weld lap joints are coated with a layer of sealant layer thickness should be about 1mm, and may not have virtual sticky glue , bubbles and other defects ; should be painted in the fold of the hem special glue ; under the entire floor surface should be coated surface and the front cover under the elastomeric coating and anti-corrosion coating of 3mm-4mm ; these measures can not only greatly enhance the whole sealing and corrosion slows the car body speed , but also can greatly enhance comfort.

Routine maintenance required to put in place

The first is to check whether the automotive sealing large cracks , with or without fracture. If the seal broken or larger cracks can be repaired using an adhesive . Particularly the use of special adhesive seal , it is easy to put up a big crack of good . Of course , if the seal of serious injury , or a greater degree of aging , it is best to replace the new seal easy. Replacing the seal is not difficult , but in order to do a better job , better ask professionals .

Sealing strip routine maintenance work , including the following. The first is the use of the car wash detergent , after the cleaning, coated with a high permeability of the protective agent in order to prevent the aging of the seal . In addition , it is easy to fill up the gap between the dust seal , causing corrosion. For this reason , you should use a brush to remove dust and other clean.

Doors and windows sealing strip is an important part of effective measures to ensure that it is airtight doors , watertight , sound , etc., but it is also a reliable guarantee of glass in windows and doors after by external security presence . Since the seal affected by climate and sunlight produces contraction, aging, deformation , and therefore ,colored cable ties the sealing strip is not allowed to work under tension , should remain in the free state . In order to firmly stuck to the glass , the installation process will tend to pull too tight seal , can not guarantee a free state , so that in the tensile deformation state. Practice has proved that , due to the seal installed in tensile deformation state, has emerged seal off, pull off , cracks and other phenomena . For this reason , during installation, the length of the seal assembly of doors side than the more , the slope at the corner is turned off, the adhesive stick firmly , allow sufficient telescoping margin.