Underbody Coating
Under-Body coating for Automobiles
Brief:
Underbody coatings are those which are used to prevent car bodies against rust & corrosion. This underbody coating helps in protection from dust and moisture and also some other factors such as poor road conditions, rocks getting thrown from tires and denting the metal and salt from water during monsoon which plays an important role in damaging the underbelly of a car.
Purpose:
Underbody coating means a coating labelled and formulated for application to wheel wells, the inside of door panels or fenders, the underside of a trunk or hood, or the underside of the motor vehicle and the main purpose is to protect the parts from rust and corrosion which leads to increase the life span of the vehicle.
Types of Under-body 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 Under-body 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 amounts of rubber for sound-insulation purposes. The process of applying this coating is a bit time-consuming though.
4. Polyurethane under-body 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 of Under-body Coating:
- It provides a layer of protection against rust and corrosion in the vehicle.
- It absorbs noise from the passenger seating inside the vehicle as it is mainly made up of rubber which absorbs some of the rackets.
- It will offer better reinforcement to the vehicle while protecting the underbody from water, road debris, gravel and small pebbles.
- It increases the lifespan of the car's body with slower wear and tear.
Disadvantages of Under-body Coating:
- It is less helpful if corrosion is already present.
- It usually works better for the new vehicle.
- Most vehicles make it five years before corrosion begins to show.
- It needs to be done at the official showrooms else it might void the vehicle’s warranty which increases the cost.
- It adds weight to the vehicle.
- An undercoating is not impervious to damage.
- It must be reapplied every 3 to 5 years for the best results.
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