Car exhaust heat shield material is designed to protect components from the intense heat generated by the exhaust system. These materials help prevent heat from radiating into nearby areas such as the engine compartment, passenger cabin, or sensitive vehicle parts like fuel lines, brake lines, and electronics. Common materials used for car exhaust heat shields include:

1. Aluminized Fiberglass: A composite material that combines aluminum for heat reflection and fiberglass for heat resistance, offering effective protection against high temperatures.

2. Stainless Steel: Often used for durable, rigid shields that provide long-term protection from exhaust heat.

3. Ceramic Coatings: Used on exhaust parts to form a thermal barrier that resists extreme temperatures.

4. Basalt Fiber: A natural volcanic rock fiber that withstands high temperatures and offers excellent heat insulation.

5. Silica Fiber: Known for its high heat resistance, typically used in applications requiring thermal protection at extreme temperatures.

These materials work together to lower the temperature around the exhaust system, reducing heat soak and improving overall vehicle performance and longevity.