Underbody Coating
UNDERBODY COATING:
It is the process in which the paint is applied on the BIW model it is preliminary paint coating and it is mainly used for protection from corrosion and rusting. The underbody coating thickness are different in different regions. Underbody coating usually a dense cladding (often based on rubber)applied uniformly to the undercarriage of the automobile. It is normal sprayed or painted on when the car is just out of the dealer ship and clean. But even if you are getting the undercoating applied after a couple of years, it is fine too. This is because it can prevent further damage to the under carriage

Fig. Process of under body coating of the vehicle.
Purpose of underbody coating
The purpose of coating is to check rust especially in the body components like frames rails along with the other exposed metal parts. Underbody coating can also reduce wear and tear.

Type of underbody coating:
- Rubberized Underbody coating:
This is generally thought of as 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.
02.Wax based under body Coating :
This is more or less-ephemeral undercoating will wear away in the 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.
03.Asphalt Based Automotive Undercoating:
Best suited for lorries, trucks and large vehicles this is provided a greater degree of protection compared to rubber based coating. Is a bit time consuming though.
- Polyurethane underbody coating:
This coating closes up splits and fractures on the under body of the vehicle. It offers up good protection against corrosion and also bond with the metal. Unlike in the case of asphalt- based coating you can paint over the urethane coating.
Advantages of undercoating:
Now we will tell you why you should consider investing in a vehicle underbody coating.
01.Fights Rust:
It plays an important role in keeping corrosion at bay. Underbody coating can come in handy especially if you live near the sea, where ther is too much humidity, and rusting is just one of those everyday things. You should also seriously consider undercoating if you reside in aplace where it snows in winter
- Absorbs Noise:
Believe it or not very thick underbody coating can soften the noises that reach the cabin. Since the undercoating is often made up of rubber it absorbs some of the rackets. The occupant of the car could spare themselves of the road noises- atleast upto a certain distance
- Reinforcement:
If your car comes with stock underbody coating, using another coating on top of it, is not going to hurt. It will offer additional reinforcement protecting the underbody from water,road debris, gravel and small pebbles. There would also be a lesser chance for the factory coat to flake away
- Prolong cars life
Good undercoating not only defends under body from corrosion but als protects the engine and transmission as well! Less rusting coupled with slower wear and tear can surely add years to lifespan of your vehicle. There would be fewer dents. Dings and scratches on the undercarriage for you to fret about.
Disadvantages of Undercoating:
- Costly
Some of the underbody coatings are costly compared to their life span.
- Maintenance cost
It adds up into the maintenance cost of vehicle greatly.
Conclusion
We studied the different types of underbody coating for automobiles, their types, their purpose, pros and cons used in an automotive industries.