Adhesive manufacturers share the wide range of functions and applications of automotive sealants
It plays a crucial role in the performance and service life of automobiles. Sealing adhesives play a crucial role in automotive manufacturing, primarily serving to isolate air, dust, and water to reduce corrosion or improve comfort. In addition, in many cases, sealant can also play a positioning role, ensuring the correct position and connection of automotive components. In modern automobile body manufacturing, many applications of sealant are invisible, among which the use of low viscosity rubber sealant is superior to traditional spot welding technology. Polyethylene hot melt adhesive is often used for parts that are difficult to solve after assembly. By placing the sealing strip or sealing rod on the car door or rocker panel at the appropriate time, when heated in the primer oven, the sealing adhesive will melt and flow into the interior of the joint, playing a sealing role.
In automobile manufacturing, sealant is mainly used for assembly of automobile engine, chassis, gearbox, steering gear and other assemblies. Applying liquid sealant can effectively prevent the “three leaks” – oil, gas, and water leakage, and improve the sealing performance of various parts of the car. On some threaded parts, the application of various anaerobic adhesives can not only prevent leakage, but also play a role in preventing loosening and fastening. Semi dry polydimethylsiloxane adhesive is a commonly used liquid sealant with excellent oil and heat resistance. After curing, it forms an elastic film and has a significant effect on flat flange surfaces. In addition, polyurethane non dry and nitrile rubber dry peelable adhesives are widely used in the bonding surface of metal components. Weld sealant and spot welding adhesive are used to seal the weld seams of car body steel plates. The weld sealant is usually applied to the weld seams of the car body, with good adhesion and will not affect the intermediate coating and topcoat.
Adhesive manufacturers share the wide range of functions and applications of automotive sealants
Many car manufacturers use PVC plastic sol as weld adhesive, which requires specialized drying equipment to form a wear-resistant and corrosion-resistant film with certain elasticity at high temperatures. In addition, there is room temperature vulcanized polysulfide rubber type weld sealant, which, although complex to operate, has good performance. Finger pressure adhesive is a commonly used sealing putty, mainly used to fill large gaps and process holes formed after vehicle body welding and assembly. For gaps that cannot be filled by ordinary weld adhesive, finger pressure adhesive is an effective solution. Swiss imported brand DM glue has rich experience in the field of automotive glue and has cooperated with many well-known car companies to provide solutions for projects such as BYD new energy vehicles and BAIC.
Adhesive manufacturers share that automotive sealants play an indispensable role in automobile manufacturing, ensuring stable connections and good performance of various components through effective sealing and bonding. For car manufacturers and maintenance personnel, choosing the appropriate sealant is crucial to ensuring the quality and safety of the car. If you have any questions about the application and selection of automotive adhesives, please feel free to consult professional engineers for more information.
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