Underbody Coating
Introduction
In Indian road conditions, a car's underbody is most prone to corrosion. Underbody coating provides long-term protection from corrosion to the car’s underbody. It also protects parts like internal body panels, frame rails, and other inner cavities that are not physically accessible but are prone to corrosion. it provides long-term protection from corrosion to the car’s underbody. It also protects parts like internal body panels, frame rails, and other inner cavities that are not physically accessible but are prone to corrosion. Underbody coating is also called underseal. It protects the car belly from corrosion like rusting. It even protects the underbody from being chipped aways by stones and humps.
Types of Underbody Coating
Rubberized Coating:
Rubberized undercoating is safe to use on wheel wells and quarter panels, and dries to a soft rubbery finish that prevents further rust, damage, or moisture seeps. It provides the simplest and best protective measures against rust and moisture.
Polyurethane Undercoating:
Polyurethane Undercoating works by seeping into all cracks and seams, displacing salt and moisture, and oozing around rusty areas to bond with and protect the unoxidized metal.
Polyurethane undercoating is a little bit quicker and easier to apply.
Wax or Paraffin based Undercoating:
It will wear off quicker than other types of undercoating and will need to be stripped and reapplied at least once every year as it is a cheaper and quicker option available.
Asphalt based Undercoating:
Asphalt-based undercoating provides a bit of extra durability against rocks, chips, and moisture for large trucks and heavy machinery.
This type of undercoating generally requires more cure time than the other types.
For standard vehicles like cars, the above three types of undercoating are sufficient for protection.
Advantages of Underbody coating
- Undercoating gives an extra layer of protection against rust and corrosion, protecting your car.
- Undercoating will eventually wear out, but you can get years of protection from it. Even vehicles in warmer climates gain protection as debris is repelled and kept away from eating at the vehicle.
- It can be self-applied.
- It minimizes the sound from underneath the car.
- It insulates the interior of the car from the extreme temperature beneath the vehicle.
- The coating does not chip away when hit by stones
Disadvantages of Underbody coating
- Undercoating will not help you if corrosion already exists and the corrosion needs to be removed first before it can be applied, which can be expensive for you.
- It must be reapplied every 3 to 5 years for the best results
- It adds weight to the vehicle.
Main Specific Points
- Minimizes Sound: It minimizes the sound from underneath the car resulting in a noiseless, smooth driving experience.
- Heat Insulation: It insulates the interior of the car from extreme temperatures from beneath the vehicle providing a comfortable cabin experience.
- Anti-chipping property: If any stone hits the coating it does not get chipped away hence protects the underbody from exposure to water.
Fig 1: Fights Rust
Fig 2: Asphalt based Undercoating
Fig 3: Rubberized Coating
Fig 4: Undercoating
Reference