Underbody Coating
Answer:-
Under-Body Coating means like a rusting area painting or spary in cars. After this process then we are delivers to cars in showrooms or delarship.
Now its purpose - 1. Long time no rusting.
2. Clean those area.
3. Protect our cars.
For example show in fig- before and after under-body coating.

Types of under-body coating-
1. Rubberized body coating- its is easily apply to cars and protect to sound, dust, moisture etc.
2. Wax body coating- A wax undercoating will be the cheapest and quickest option available with which to protect the undercarriage of our cars.
3. Asphalt-based undercoating- its provides a bit of extra durability against rocks, chips, and moisture.
its pros and cons-
Pros means advantage:-
1. Protect our cars.
2. Long time no rusting.
3. Clean those area.
Cons means disadvantage:-
1. It's not effective on cars with corrosion.