What is a common material for shock absorber seals?

Shock absorber seals are typically made from rubber or polyurethane due to their excellent properties that suit the demands of the automotive environment. Rubber is widely used because of its flexibility, durability, and resistance to wear and tear, as well as its ability to create a tight seal that prevents fluid leakage. Polyurethane can also be employed as it offers superior resistance to heat, chemicals, and abrasion compared to standard rubber, making it ideal for high-performance applications.

These materials are essential because they must withstand a wide range of temperatures and pressures while maintaining their integrity over time. Ensuring a proper seal is crucial for the shock absorber's performance, as any leaks can lead to decreased effectiveness in damping and can compromise vehicle handling and ride quality.

In contrast, plastic and stainless steel do not provide the same level of elasticity or sealing ability required for shock absorbers. Fiberglass is not used for seals due to its rigid and brittle nature, making it unsuitable for the dynamic applications necessary in shock absorbers. Thus, rubber or polyurethane stands out as the most appropriate materials for this application.