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Colored and black compound rubber EPDM adhesive strips D-profile single-extrusion sponge sealing strip Single-extruded sponge rubber strip Car windshield weatherstrip Custom-profile EPDM rubber sealing strips Dual-compound EPDM sealing strip Automotive EPDM tri-component weatherstrips Solid EPDM rubber sealing strip
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Rubber Compound Products

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Colored and black compound rubber

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EPDM adhesive strips

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D-profile single-extrusion sponge sealing strip

 04

Single-extruded sponge rubber strip

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Car windshield weatherstrip

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Custom-profile EPDM rubber sealing strips

 07

Dual-compound EPDM sealing strip

 08

Automotive EPDM tri-component weatherstrips

 09

Solid EPDM rubber sealing strip
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Home < Product Center < Automotive EPDM tri-component weatherstrips
Automotive EPDM tri-component weatherstrips
Supportiveness
Resilience
Fixed performance
Manufactured from EPDM material via co-extrusion of three functional layers, this product combines the structural support of dense rubber, the resilience of sponge rubber, and the stability provided by a reinforcement layer. It is primarily used for automotive door seals, window guide channels, trunk seals, hood seals, and bodywork joints.
Key Advantages:

Composite of three materials for enhanced functionality
Waterproof, dustproof, sound-insulating, and shock-absorbing
Excellent compression resilience for long-lasting sealing
Resistant to ozone, UV radiation, and temperature extremes
Wear-resistant and durable with a long service life
Secure installation and dimensional stability
Customizable cross-section, hardness, length, and surface finish based on drawings

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Applications

Automotive: Door/window seals, trunk seals, engine hood seals.

Construction: Curtain wall joints, window seals, roofing membranes.

Rail Transit: Train door and window seals.

Appliances: Refrigerator and washing machine door seals.

Standard Product Property List
No.
Product Name / Test Item
5040
6533
7021
7527
8023
9040
1
Hardness IRHD
47
66
72
76
81
89
2
Tensile Strength (Min) MPa
13
10.8
7.3
7.3
8.2
13
3
Elongation at Break (Min) %
500
380
351
355
260
302
4
Hot Air Aging
70°C x 7d
Hardness Change (Max) IRHD
+4
+4
+3
+3
+4
0
Tensile Strength Change Rate (Max) %
-10
-18
-11
-10
-23
-16
Elongation Change Rate (Max) %
-21
-33
-27
-30
-35
-23
5
Compression Set Type B (Max)
(70°C, 24h) %
17
23
18
19
36
18
Production Flow
01
Auxiliary Equipment: Auto-weighing
02
Internal Mixer: Auto-mixing and Discharge
03
Open Mill: Cooling and Secondary Mixing
04
Rubber Strainer: Filtering Micro-impurities
05
Open Mill: Sheet Production
06
Batch-off Line
07
Testing
08
Warehousing
09
Packaging & Shipping
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