Tips for using automotive sealing tape

Automotive sealing tape is one of the important parts of the car, widely used in doors, windows, body, seats, sunroofs, engine cases and boots, etc. It can be produced for the installation of rubber hinges for luggage compartment doors of buses, and also has other waterproofing, sealing and other roles.

Classification of automotive sealing rubber strip:

1, vulcanised rubber sealing tape

Generally EPDM material. Comprehensive performance is excellent, with outstanding ozone resistance, excellent weather resistance, good high and low temperature resistance, outstanding chemical resistance, resistance to a variety of polar solutes, relative density is small. The disadvantage is that it expands a lot in general mineral oil and lubricating oil, and it is generally a dark-coloured product. Temperature range -60～+150℃. With its wide range of application and excellent overall performance, it has been recognised by domestic and foreign industry enterprises.

2、Silicone rubber sealing tape

With outstanding high and low temperature resistance characteristics, ozone resistance and weather resistance; good hydrophobicity and proper air permeability; with insulation properties; can reach the food hygiene requirements of the health level, can meet the requirements of a variety of colours. The disadvantage is that the mechanical strength is very poor in rubber materials, not oil resistant. Use temperature range -100 ~ +300 ℃. Can be applied to high temperature, cold, ultraviolet irradiation of strong areas and medium and high-rise buildings.

3, neoprene sealing tape (CR)

Compared with other special rubber, individual performance is poorer, but the overall performance balance is good. Excellent weather resistance, ozone resistance, heat aging resistance and oil solvent resistance, good chemical resistance and excellent flame resistance, good adhesion. Poor storage stability, hardening occurs during storage, bad cold resistance. Relative density is large. Generally black products. Used in the environment of oil resistance, heat resistance, acid and alkali resistance requirements. Temperature range -30～+120℃.

4、Nitrile rubber seal

The main features are oil resistance, solvent resistance, but not resistant to ketone, ester and chlorinated hydrocarbons and other media, elasticity and mechanical properties are very good. The disadvantage is that in the ozone and oxidation is easy to aging cracking, cold resistance, low temperature resistance is poor.

5, thermoplastic elastomer sealant strip

With good elasticity and excellent abrasion resistance, good oil resistance, hardness can be adjusted in a wide range (Shore A hardness of 65 ~ 80 degrees), mechanical properties (tensile strength, elongation) is superior, excellent cold resistance and resistance to chemicals intertwined with corrosion, the price of raw materials is higher. For recyclable materials. Temperature range -60～+80℃. Suitable for earthquake-prone areas, near the railway or plant with high-power cranes and other strong vibration of the region, as well as strong ultraviolet radiation areas.

6、Thermoplastic vulcanised rubber (TPV) sealing tape

With the flexibility and elasticity of rubber, can be produced by plastic processing methods, without vulcanisation, the waste can be recycled and reused. Is a wider range of performance materials, heat resistance, cold resistance, good, small relative density, oil resistance, solvent resistance and chloroprene rubber performance is similar to the compression deformation and abrasion resistance is not very good. Use temperature range -40 ~ +150 ℃. Can be applied to cold, as well as medium and high-rise buildings.

7, plasticised polyvinyl chloride (PPVC) sealing tape

Materials are cheap and easy to obtain, with corrosion resistance, abrasion resistance, acid and alkali resistance and all kinds of chemical media, combustion resistance, high mechanical strength; disadvantage is that with the migration of plasticisers within the system, with the prolongation of time to harden and become brittle, loss of elasticity, not aging, weathering and low-temperature performance is poor. Generally dark-coloured products. Suitable for light is not strong, the temperature does not change much, the climate conditions are not harsh occasions.

8、Surface coating material

It is coated with polyurethane, organosilicon, polytetrafluoroethylene and other substances on the surface of the sealing strip to replace the traditional process of surface flocking. The coated sealing strip has good abrasion resistance and smoothness, especially the sealing strip coated with silicone surface coating, the surface friction coefficient is small, which is conducive to the sliding of the door and window fan. It is suitable for use on doors and windows with sliding doors and window fans. It is a substitute for traditional siliconised furring strips.

Car sealing rubber strip daily maintenance and use tips:

1, check the sealing strip for large cracks and breaks. If the sealing strip is broken, you can use the bonding agent to repair it. Especially with the sealing strip special bonding agent, it is easy to mend the large crack strip. Of course, if the sealing strip damage is serious, or aging degree is large, or replace the new sealing strip to save time.

2, the owner of the car in the use of car detergent for cleaning doors and windows after the sealing tape, to be coated with a layer of high permeability of the protective agent, which can prevent the sealing strip aging and can greatly improve the sealing of the sealing strip. In addition to this, the gaps between the seals can easily become filled with sand and dust, which can lead to rust and corrosion. For this reason, sand and dust, etc. should be removed with a brush.

3. When replacing the entire body, a layer of sealant should be applied to the overlap portion of the weld, the thickness of the adhesive layer should be approximately 1mm, and the adhesive layer should be free from defects such as false sticking and air bubbles. In the whole floor under the surface and the front wheel cover under the surface should be coated with 3mm-4mm elastic coating and anti-corrosion coating. These measures can not only greatly enhance the sealing of the car and slow down the body of the corrosion rate, but also can greatly improve the ride comfort.

4, the door and body sealing is a more difficult part of the sealing requirements are more stringent, should be sealed part of the longer, the sealing part of the cross-section of the shape is not the same, and the door open and close frequently. In the car is often set up 3, 4 sealing, the installation of the front pillar and roof side beam parts of the quadruple sealing structure. This multi-channel seal is generally arranged in the front door seam, in addition to the sealing function, but also the role of automotive sound insulation and noise reduction.

5, in the window glass damage, car owners in the replacement of glass, to check the seal has no damage. As the window after repair often return to the original shape, therefore, this time, in addition to ensure that you can easily pull or lift the window glass, but also pay attention to the sealing of the window glass around. If the gap between the glass and the glass groove is uneven, the rubber strip and glass, glass groove contact is poor, the owner can easily pull off the sealing strip by hand.

6, the owner of the roof in the change, should first be coated with a layer of conductive sealant in the roof peripheral pressure joints, to be welded and then in the running groove and seams coated with folding adhesive, which not only helps to seal the body, but also to prevent the body due to the flap of the welded seams at the accumulation of water and produce early rust.

7, car sunroof is the basic configuration of most family cars. When the sunroof is open, the rubber sealing strip track is exposed to the air, which inevitably accumulates dust and even runs into small gravel. Prolonged use may lead to deformation of the sunroof due to wear and tear and clogging of the drainage holes. That's why it's important to clean and lubricate the tracks regularly.

Although the car sealing tape is a small part of the body, but it can ensure that the switching doors are calm and heavy, but also can make the car to avoid the wind and rain, dust, heat insulation, sound insulation, and play a decorative effect on the edge of the door and window junction. When the car body is subjected to vibration and distortion, the seal also plays the role of cushioning, shock-absorbing, glass protection. Therefore, car maintenance is no small matter, no part of it should be neglected.