What are the pros and cons of installing heat insulation cotton on the engine hood?

[MacChristian]

The advantages of installing heat insulation cotton on the engine hood include noise reduction, flame retardancy, sound absorption and vibration damping, rust prevention, and heat insulation. The disadvantage is that inferior quality insulation cotton has extremely poor flame retardant effects. Below are the details: 1. Advantages: Reduces noise and absorbs sound; flame retardant, as insulation cotton materials are generally designed to be flame retardant; sound absorption and vibration damping effects adhere to the car body, effectively slowing down the vibration of the car body and eliminating metal fatigue; the waterproof performance of the insulation cotton effectively prevents moisture from coming into contact with the door panels, providing rust prevention; heat insulation protects the paint on the engine hood surface, avoiding direct heat transfer from the engine to the hood, thus protecting the paint and preventing fogging on the hood during rainy days that could affect visibility. 2. Disadvantages: Inferior quality insulation cotton has extremely poor flame retardant effects, which can create safety hazards.