The EPDM three port rubber strip is primarily used on car door leaf frames, side windows, front and rear windshield, engine hood, and trunk lid. It plays a role in waterproofing, dustproof, sound insulation, temperature insulation, shock absorption, and decoration. It can also be used to produce rubber chains for installing passenger car luggage compartment doors. The common formula planning of the company makes the Sanyuan B inner rubber sealing strip have excellent anti-aging, high and low temperature resistance and chemical drug resistance characteristics, excellent elasticity and compression deformation resistance, long-term use will not crack or deform, and the original high sealing function can be maintained between -50 and 120 degrees. The experience in planning the cross-section of rubber strips and comprehensive system planning ensures outstanding waterproof, dustproof, soundproof, thermal insulation, and shock absorption effects. The sealing strip device is convenient, sturdy and reliable, with a three port sealing strip made of EPDM rubber for the car door glass groove.

Three element B inner three mouth rubber strip can be assembled onto doors with door glass. The upper part of the glass slide includes: a main body with an inner wall and a U-shaped cross-section; a pair of sealing lips that seal the door glass; A pair of engagement protrusions, set on the inner surface of the inner wall, and suitable for engagement with the engagement recess of the fixing component; And the curved part is set on the inner wall between the two joint protrusions. In this way, when the three mouth rubber strip is installed in the glass groove, the curved part is twisted to protrude towards the inside of the car, and the joint protrusion is inserted into the fixing part. Then, after releasing the twisted state, the two joint protrusions are separated and fitted into the joint recess.