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A rubber strip is a long, narrow piece of rubber material that is often used for sealing, cushioning, or protection. Rubber strips can be made from various types of rubber, including natural rubber, synthetic rubber, silicone rubber, neoprene rubber, and more. They come in different sizes, thicknesses, and shapes, depending on the intended application.
Rubber strips are commonly used in industries such as automotive, construction, and manufacturing. They can be used as weatherstripping to seal windows and doors, as gaskets to prevent leakage of fluids or gases, as vibration dampeners to reduce noise and protect equipment from damage, and as edge protectors to prevent sharp edges from damaging surfaces or people.
Some common applications for rubber strips include:
Weatherstripping: Rubber strips can be used to seal gaps and openings around doors, windows, and other areas to prevent air, water, and noise from entering or escaping.
Sealing: Rubber strips can be used to create a tight seal between two surfaces, such as in automotive applications or in industrial settings.
Rubber strips can also be used for various other purposes, such as in arts and crafts, DIY projects, and household repairs. They are generally flexible, durable, and resistant to abrasion, tearing, and weathering, making them a versatile material for a wide range of applications.
Fortex(Shanghai) Industrial Co., Ltd.

About Us

Fortex(Shanghai) Industrial Co., Ltd is China Rubber strip Manufacturers and Rubber strip Factory. Established in 2021, FORTEX is a manufacturer and exporter specialized in the design, development and production of Rubber strip. We are located in Shanghai with convenient transportation access. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.
We have more than 30 employees, annual sales over USD 3 million, and currently export 50% of our products worldwide. Our well-equipped facilities and sophisticated quality control throughout all stages of production enable us to guarantee total customer satisfaction.
If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
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From The Blog

Rubber strip Industry Knowledge Extension

The key role of rubber strips in automobile sealing systems and selection guide

1. The key role of rubber strips in automobile sealing systems

Waterproof and dustproof
Prevent rain and dust from entering the car compartment and improve driving comfort.
Typical applications: door seals, window guides, sunroof seals.

Sound insulation and noise reduction (NVH performance)
Absorb vibration, reduce wind noise and road noise transmission, and improve quietness.
Key parts: door frame seals, engine compartment seals.

Buffering and shock absorption
Provide buffering when the door is closed to avoid direct metal collision and extend the life of components.

Insulation and energy saving
Improve the air tightness of the car compartment and reduce air conditioning energy consumption (especially important in electric vehicles).

Aesthetics and aerodynamics
Hide seams, optimize body lines, and reduce wind resistance (such as frameless door seals).

2. Key factors in the selection of automotive rubber strips

Material selection
EPDM (ethylene propylene diene monomer rubber): excellent weather resistance (-50℃~150℃), ozone/ultraviolet resistance, mainstream choice.
TPE/TPV (thermoplastic elastomer): recyclable, lightweight, but slightly inferior to EPDM in long-term aging resistance.
Silicone rubber: high temperature resistance (200℃+), used in high-temperature areas such as engine compartments.

Structural design
Hollow sponge structure: good elasticity and sound insulation (commonly used for door frame sealing strips).
Solid and dense structure: strong wear resistance (used for window guide grooves).
Composite coating: low-friction coating on the surface (such as polyurethane) improves the smoothness of glass lifting and lowering.

Performance test standards
Durability: fatigue test simulating more than 100,000 times of door opening and closing.
Environmental adaptability: high and low temperature cycle (-40℃~90℃), salt spray test.
Sealing: water tightness (rain test), air tightness (wind pressure test).

Matching with the body
Installation method: snap-on, adhesive or embedded (need to match the body sheet metal tolerance).
Color and surface treatment: coordinated with the body color (such as black, gray matte).

3. Common problems and solutions

Noise problem: The rubber strip is aged and hardened or the coating is worn → Choose EPDM with lubricating coating.
Seal failure: The designed compression is insufficient (usually 20%~30% compression ratio should be reserved).
Become brittle at low temperature: Ultra-low temperature formula (such as adding plasticizer) should be selected in cold regions.