Underbody Coating
UNDER BODY COATING :
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.
UNDER COATING AND ITS PURPOSE :
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.
The main purpose of undercoating is to check rust especially in the body components like frame rails along
with other exposed metal parts. Underbody coating can also reduce wear and tear.
In Indian roads car underbody is prone to rust easily as because of the seasonal & humid conditions.
A sample view of with and without underbody coating

TYPES OF UNDER COATING :
1. Rubberised under body 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 under body coating :
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 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.

PROS OF UNDERBODY COATING
Fight’s 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 there is too much humidity, and rusting is just one of those everyday
things. You should also seriously consider undercoating if you reside in a place where it snows in winter.

2. Absorb Noise - very thick undercoating can soften the noises that reach the cabin. Since the
undercoating is often made up of rubber it absorbs some of the rackets. The occupants of the car could spare
themselves of the road noises – at least up to a certain extend.

3. Reinforcement - If your car comes with stock underbody coating, using another coating on top of it, is
good. 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.

4. Prolongs car life – Good undercoating not only defends the underbody from corrosion but also protects
the engine and transmission as well! Less rusting coupled with slower wear and tear can surely add years to
the lifespan of your vehicle. There would be fewer dents, dings and scratches on the undercarriage for you to
fret about.

CONS OF BODY UNDER COATING PROCESS :
- It’s less helpful if corrosion is already present.
- It works best on new cars.
- A third-party vehicle underbody coating may void warranty.
- It adds weight to vehicle.
- It’s not impervious to damage.
THANK YOU