Automotive rubber parts: the choice and role of different rubber species

Rubber parts in automobiles use a variety of different types of rubber materials, each with specific properties and application scenarios. Below are the types of rubber typically used for each rubber part and what they do:
I. Engine System
1. Gaskets
- Type of rubber: Fluorine rubber (FKM), Silicone rubber (VMQ)
- Function: High temperature, oil and chemical resistant. 2.
2. Belts
- Grades: Neoprene (CR), Ethylene Propylene Diene Rubber (EPDM).
- Function: Resistant to abrasion, oil and heat. 3.
3. Hoses
- Grades: Ethylene Propylene Rubber (EPDM), Neoprene Rubber (CR), Silicone Rubber (VMQ).
- Role: high temperature resistance, chemical resistance, aging resistance. 4.
4. Engine Mounts
- Gum type: natural rubber (NR), nitrile rubber (NBR)
- Role: shock absorption, oil resistance, fatigue resistance.
II. Suspension
5. Suspension Bushings
- Rubber type: natural rubber (NR), polyurethane (PU).
- Role: shock absorption, abrasion resistance, aging resistance. 6.
6. Shock Absorber Seals (Shock Absorber Seals)
-Grades: Nitrile Rubber (NBR), Polyurethane (PU)
-Role: oil resistance, abrasion resistance.
Brake System
7. Brake Hoses
- Grades: Chloroprene Rubber (CR), Ethylene-Propylene Rubber (EPDM)
- Function: Resistant to high temperature, oil and aging. 8.
8. Brake Seals
- Type: Nitrile Rubber (NBR), Fluorine Rubber (FKM)
- Role: oil resistance, abrasion resistance, chemical resistance.
IV. Drive train
9. Drive Shaft Bushings
-Rubber type: natural rubber (NR), polyurethane (PU).
- Function: vibration damping, wear resistance. 10.
10. Transmission Seals
- Grades: Nitrile rubber (NBR), Fluorine rubber (FKM)
- Function: oil, abrasion and high temperature resistant.
V. Body and Compartment
11. door and window seals (Door and Window Seals)
- Rubber type: ethylene propylene rubber (EPDM)
- Role: aging resistance, ozone resistance, good elasticity. 12.
12. Luggage Seals (Trunk Seals)
- Adhesive: Ethylene Propylene Rubber (EPDM)
- Role: aging resistance, ozone resistance, good elasticity. 13.
13 Windshield Seals
- Gum Type: Ethylene Propylene Rubber (EPDM)
- Role: aging resistance, ozone resistance, good elasticity.
VI. Fuel System
14. Fuel Hoses
- Rubber type: Nitrile rubber (NBR), Fluorine rubber (FKM).
- Function: Oil, fuel and high temperature resistant. 15.
15. Fuel Cap Seals (Fuel Cap Seals)
- Gum Type: Fluorine rubber (FKM)
- Function: oil resistant, chemical resistant, good sealing.
Cooling System
16 Radiator Hoses
- Gum Type: Ethylene Propylene Rubber (EPDM)
- Role: high temperature resistance, coolant resistance, aging resistance. 17.
17. Water Pump Seals
- Rubber type: NBR, FKM.
- Role: water, coolant, wear-resistant.
Air Conditioning System
18. air conditioning hoses (AC Hoses)
- Rubber Type: Ethylene Propylene Rubber (EPDM), Nitrile Rubber (NBR)
- Function: Resistant to refrigerant, aging and ozone. 19.
19. air-conditioning seals (AC Seals)
- Gum type: Fluorine rubber (FKM)
- Role: Refrigerant resistance, chemical resistance, good sealing.
Others
20. Tires
- Grades: natural rubber (NR), synthetic rubber (SBR, BR)
- Role: abrasion resistance, good elasticity, aging resistance. 21.
21. Wiper Blades
- Grades: natural rubber (NR), neoprene (CR)
- Role: abrasion resistance, good weather resistance. 22.
22. Dust Boots
- Rubber Type: Neoprene (CR), Ethylene Propylene Diene Rubber (EPDM)
- Role: dustproof, waterproof, wear-resistant.