Underbody Coating

UNDERBODY COATING

UNDERBODY:

Underbody parts are mainly structured elements and panels in the lower part of the vehicle including the whole vehicle's platform.

UNDERBODY COATING:

As per the bad 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. Underbody coating is usually a dense cladding (often based on rubber) applied uniformly to the undercarriage of the automobile. It is normally sprayed or painted on when the car is just out of the dealership and is clean. But even if you are getting the undercoating applied after a couple of years, it’s fine too. This is because it can prevent further damage to the undercarriage.

PROCESS :

Before underbody coating, the BIW frame is treated with the electrolyte coating for internal corrosion resistance and sent through the chemical treatment for removing the overcoating in the small holes after this stage, it is sent for underbody coating depending upon its requirements. Then inspection and painting are started.

Before and after underbody coating

TYPES OF UNDERBODY COATING :

1. Rubberized Underbody Coating: This is generally thought of as the best underbody coating for your car. It preserves the underbody well, protecting it from scratches. Applying this to the undercarriage is not much of a hassle either.

2. Wax-Based Underbody Coating: This – more or less – ephemeral undercoating will wear away in a few months’ time. On the upside, wax-based undercoating puts up a big fight against moisture. It is also the most affordable option out there.

3. Asphalt Based Automotive Undercoating: Best suited for lorries, trucks, and large vehicles this provides a greater degree of protection compared to rubber-based coatings. However, asphalt-based coatings contain little amount of rubber for sound-insulation purposes. The process of applying this coating is a bit time-consuming though.

4. Polyurethane Underbody Coating: This coating closes up splits and fractures on the underbody of the vehicle. It offers up good protection against corrosion and also bonds with the metal. Unlike in the case of asphalt-based coating, you can paint over the polyurethane coating.

ADVANTAGES:

• To protect the car body externally from corrosion and damage especially for vehicles in coastal regions it is required as it may get corroded easily due to Salt Water.
• 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.
• Easy maintenance

DISADVANTAGES:

• Cost is more.
• Third-party and the body coating might wide vehicles warranty.
• It adds an additional way to the vehicle.
• Must be reapplied every 3-5 years.