Customized ethylene propylene diene monomer (EPDM) rubber sealing parts are used for the edge composite sealing strips of car trunk lip doors and car roof sealing strips.
Material: EPDM
Color: Black or custom. Delivery time: 10-30 days.
Size: Customizing or 8*15*1000mm
Production Technology: Extrusion or molding.
Function: Waterproof, durable, anti-aging and highly tensile.
Temperature: -50 to 150°C dense part.
Weather resistance: heat resistance, resistance to extreme weather damage, corrosion, high temperature resistance and cold resistance.
Ardness: 30 - 90°SHA (dense part), 10 - 30°SHA (foamed part)
The EPDM Flexible Car Trunk, Roof and Door Seal is a multi-purpose automotive weatherstrip designed for vehicle body openings such as trunk edges, roof joints, door frames, tailgate areas and sunroof structures. It creates a flexible sealing barrier between metal panels and moving body parts, helping reduce water leakage, air infiltration, dust entry and vibration noise.
Made from durable EPDM rubber, this sealing profile is suitable for long-term outdoor vehicle use. Its flexible structure allows close contact with different mounting surfaces, while the rubber profile can be customized to match specific body structures, installation gaps and compression requirements.
Xinqiang provides custom rubber extrusion and molding services for automotive sealing projects. We can develop trunk seals, roof seals, door frame seals and other vehicle body weatherstrips according to drawings, samples, installation positions and project specifications.
| Item | Specification |
|---|---|
| Product Name | EPDM Flexible Automotive Trunk Roof Door Sealing Strip |
| Material | EPDM Rubber |
| Structure | Dense rubber / foamed rubber / composite sealing profile |
| Color | Black or customized |
| Size | Customized or 8 × 15 × 1000 mm |
| Application | Trunk lip, door edge, roof seal, sunroof area |
| Production Process | Rubber extrusion or molding |
| Function | Waterproofing, dust protection, noise reduction, anti-aging |
| Temperature Range | -50°C to 150°C for dense rubber section |
| Hardness | 30–90 Shore A for dense part; 10–30 Shore A for foamed part |
| Custom Options | Profile shape, length, hardness, color, surface treatment and packaging |
| Delivery Time | 10–30 days depending on order quantity and customization requirements |
Multi-position sealing design for trunk, roof, door frame and tailgate areas
EPDM rubber provides strong resistance to ozone, sunlight, rain and temperature changes
Flexible profile helps maintain contact with uneven or curved vehicle body surfaces
Solid and sponge rubber structures available for different compression requirements
Helps reduce water leakage, dust entry, air gaps, vibration and wind noise
Customizable cross-section, length, hardness, color and surface finish
Suitable for OEM development, aftermarket supply and custom vehicle sealing projects
Supports extrusion, molding, cutting, finishing and batch production
This flexible automotive weatherstrip is designed for sealing larger vehicle body openings where movement, compression and environmental exposure are common. Compared with a single-position window sill seal, this product can be adapted to multiple body areas such as trunk edges, roof gaps, door frames and tailgate structures.
EPDM rubber offers excellent durability for outdoor applications. It maintains flexibility under changing temperatures and helps resist cracking, aging and deformation caused by sunlight, ozone and moisture. This makes it suitable for vehicles that require stable sealing performance over repeated opening, closing and long-term driving conditions.
The profile can be produced as solid rubber, sponge rubber or a co-extruded structure. Solid rubber sections provide support and installation stability, while sponge rubber sections improve compression recovery and sealing contact. For custom projects, Xinqiang can adjust the profile design according to the installation gap, sealing pressure, vehicle structure and required performance.
Different body sealing positions require different profile structures. Xinqiang can provide suitable EPDM sealing designs according to the project requirements.
Solid EPDM Rubber
Solid EPDM is used where higher support strength, wear resistance and mounting stability are required. It is suitable for fixed sections, clamping areas and structural sealing positions.
Sponge EPDM Rubber
Sponge EPDM provides soft compression, better rebound and improved sealing contact. It is suitable for trunk lips, door frames, roof edges and areas requiring flexible gap compensation.
Co-Extruded Sealing Profile
A co-extruded profile combines solid and sponge rubber into one sealing strip. This structure can balance installation strength and sealing flexibility, making it suitable for more complex automotive body sealing applications.
This product is suitable for automotive body sealing positions where waterproofing, dust protection, air leakage reduction and noise control are required.
Typical applications include:
Trunk edge sealing
Tailgate weatherstrip sealing
Door frame sealing
Roof edge sealing
Sunroof sealing support
Body opening weatherproofing
Passenger car, SUV and commercial vehicle sealing systems
Custom automotive rubber weatherstrip projects
Final suitability should be confirmed based on vehicle model, installation area, cross-section drawing, mounting method and original sample.
Xinqiang supports custom development for automotive rubber weatherstrips and flexible sealing profiles. Customers can provide drawings, samples or installation information for product development.
Customization options include:
Cross-section profile design
Solid rubber, sponge rubber or co-extruded structure
Customized length, width and wall thickness
Shore A hardness adjustment
Surface finish or coating options
Cutting, punching, bonding or end-forming treatment
Press-fit, clip-on, adhesive-assisted or customized installation design
Export packaging or project-specific packaging
Our team can support material selection, profile development, tooling, sample production, trial validation and mass production for automotive sealing applications.
For flexible body weatherstrip products, stable dimensions and consistent compression performance are critical. Xinqiang focuses on controlling profile accuracy, rubber material stability, surface quality and batch consistency during production.
Quality control may include:
Cross-section dimension inspection
Hardness and elasticity check
Surface appearance inspection
Compression recovery evaluation
Length and cutting accuracy inspection
Material batch consistency control
Packaging and shipment inspection
These controls help ensure that each sealing strip meets the required installation and sealing performance for vehicle body applications.
Q1: What is this flexible car trunk roof door seal used for?
It is used for sealing vehicle body openings such as trunk edges, roof joints, door frames, tailgate areas and sunroof structures. It helps reduce water leakage, dust entry, air gaps and noise.
Q2: Is this product the same as a window sill seal?
No. A window sill seal is usually installed around the door glass or waistline area, while this product is designed for broader body sealing positions such as trunk, roof, door frame and tailgate applications.
Q3: Can the sealing profile be customized?
Yes. The cross-section, length, rubber hardness, structure, surface finish and installation method can be customized according to drawings, samples or vehicle body requirements.
Q4: What structure is available for this product?
It can be made as solid EPDM, sponge EPDM or a co-extruded profile combining both structures. The structure depends on the required compression, support strength and installation method.
Q5: What information is needed for quotation?
Please provide the drawing, sample, installation position, vehicle model, required material, hardness, size, quantity and packaging requirements.
Q6: Do you support OEM automotive weatherstrip projects?
Yes. Xinqiang supports custom profile development, tooling, sample testing and mass production for OEM, aftermarket and project-based automotive sealing applications.
