The automobile sealing strip has the function of filling various gaps and gaps between the body components, and has the functions of shock absorption, waterproof, dustproof, sound insulation, decoration, etc., improving the comfort of the driving experience and protecting the car body.

Classification according to the name of the installation part (part) of the sealing strip

Engine cover sealing strip (HOOD) can be divided into front, side wall and rear; door frame sealing strip (DOORSEAL); front and rear windshield sealing strip (WINDOWSCREEN); side window sealing strip (SIDEWINDOWSEALING); Sunroof sealing strip (SUNROOFSEALING); door head channel sealing strip (PRIMARYDOORSEAL); window guide groove sealing strip (GLASSRUNCHANNEL); inner and outer side strips (water cut)(WAISTLINE); trunk sealing strip (TRUNKSEAL); anti-noise sealing strip (ANTI-NOISE); dust strip (ANTI-DUST), etc.

Classification by section shape

Can be divided into solid core products (round, square, flat section shape), hollow products and metal rubber composite products and other types. Among them, the metal rubber composite sealing strip accounts for more than 60%. For rubber sealing strip section design is very important. The first is the design of the shape and size of the sealing lip. The sealing lips on both sides should contact the glass from both sides of the window glass with the same and appropriate force. The length and thickness of the lip edge should be appropriate. If it is too thick or too long, the glass lifting resistance will be too large. If it is too thin or too short, the glass will not be well guided and sealed, resulting in vibration, noise and rain leakage. The second is the shape and size design of the bottom of the section. There are protrusions on the section of the window steel groove, which is used to assemble the guide groove. Therefore, the bottom of the guide groove section should be designed with a corresponding structure, it can also use the elasticity of the sealing strip itself to attach to the steel guide groove to prevent it from coming out; finally, the shape and size of the outer edge. In order to improve the appearance, the outer surface of the guide groove should be closely attached to the body.

Classification by sealing characteristics

Can be divided into weather sealing strip (WEATHERSTRIP) and general sealing strip (SEALING). Among them, the weather sealing strip has a hollow sponge bubble tube, which has a better temperature and humidity retention function. Commonly used weather sealing strips include door frame sealing strips, trunk sealing strips, engine cover strips, etc. Commonly used general sealing strips include front and rear windshield sealing strips, corner window sealing strips, inner and outer side strips, etc.

Classification by compound structure

It can be divided into pure glue sealing strips-composed of a single glue; Two composite sealing strips-composed of dense glue and foamed sponge glue, often containing metal skeleton materials in the axial direction inside the dense glue; Three composite sealing strips-composed of two kinds of dense glue (one of which is light color) and sponge glue, usually containing metal skeleton and reinforcing fibers inside the dense glue. Four composite sealing strip-Shanghai Shenya Seal Co., Ltd. took the lead in developing and producing a composite sealing strip composed of 4 kinds of rubber materials in China, and the surface of the rubber (bubble tube) is covered with a thin layer of protective layer Glue, thereby further improving the service life of the seal.

Classification by material variety

Can be divided into rubber sealing strip; plastic sealing strip; thermoplastic elastomer sealing strip.

Classification by surface treatment status

Part of the sealing strip surface after additional treatment, can be divided into flocking type sealing strip; surface coating sealing strip; fabric decorative sealing strip.

Special function classification

Some sealing strips have electronic intelligent functions, such as anti-pinch sealing strips.