Underbody Coating

Underbody Coating:

*Underbody Coating is applied on Vehicles to prevent the underbody surface from damages occurring due to
Rainwater, Mud, Slush, Snow, Gravel and stones.
* Damages ranging from Paint layer chip-off to heavy Corrosion can occur on the Under Body of the Vehicle.
* The coating is a layer of defined thickness applied as a spray or a polish layer.
* This coating protects the underbody layer as well as parts like internal body panels, frame rails and other inner cavities that are not physically accessible but are prone to corrosion.
* During Monsoon or in a region prone to heavy snowfalls, the water/snow tends to cause heavy corrosion to the underbody as sometimes water may stand due to poor drainage in the land in case of a flood.

Importance of Underbody Coating for a Vehicle:

- Protects Against Rust & Corrosion

* The primary objective of underbody coating is to prevent metal components that are exposed on the
bottom side of the car from corrosion damage.

* The Adverse effects of corrosion on a vehicle can be eliminated by simply applying a rubberised antirust coating all over the belly of the vehicle.

- Reduces NVH (Noise Vibrations Harshness) Levels

*Indian roads generally have uneven patches and potholes and while manoeuvring cars through such
sections, the unpaved crumbs, and pebbles hit the car from underneath or get stuck in the wheel wells.

* The underbody coating’s consistency is so thick that the layer it creates absorbs all the unpleasant noises
and vibrations and marginally improves the driving experience decreasing some amount of NVH.

- Prevents Paint Chipping

* Running on the highway or while pacing through a city road, the vehicle often encounters sharp gravel or
any other unattended object hitting the belly of the vehicle with high momentum.

* This scrapes and chips off the metal from down below.

*A thick layer of Underbody Coating comes to aid and minimises the effects of such contacts on
the body.

- Protects Vital Components

* Underneath a car is somewhere a lot of indispensable parts of a car are left exposed like the Engine,
silencer, etc.

*One simply can't afford to let these parts go bad due to rusting and hence to be safe from a hefty
repair bill, a considerably less expensive Anti-Rust Coating is a must.

Type Of Undercoatings

Wax or Paraffin based Undercoatings

* A paraffin-based undercoating will be the cheapest and quickest option available with which to protect
the undercarriage of a vehicle.

* However, it will wear off quicker than other types of undercoating and will need to be stripped and
reapplied at least once every year.

* Wax-based undercoatings never truly harden. During application, they drip or flow into seams and cracks
to provide protective properties.

*They are usually available in a spray gun canister or in an aerosol can and offer at least a base protection
in moderately humid climates.

Rubberized Coating

* Rubberized Vehicle Underbody coating is easy to apply and offers sound-cushioning as well as protection
from dust, moisture, and dings or dents.

* In addition to the undercarriage, rubberized undercoating is also safe to use on wheel wells and quarter
panels and dries to a soft rubbery finish that prevents further rust, damage, or moisture seeps.

* The coating can be painted over and, if necessary to bodywork, can be easily removed with an
undercoating removal spray.

*Overall, this is generally the best option for protecting a vehicle's undercarriage, as it provides the
simplest and best protective measures against rust and moisture.

Asphalt based Undercoating

* For standard vehicles, any of the aforementioned types of undercoating will provide sufficient protection.

*For large trucks and heavy machinery, asphalt-based undercoating provides a bit of extra durability
against rocks, chips, and moisture.

* Asphalt-based undercoating generally contains a little bit of rubberized material that sets up firmly and
also helps soften noise.

*Generally this type of undercoating also needs more cure time than the other three, and is NOT paintable,
making it best to use only for undercarriages.

PolyUrathane - PVC Coating

* This type of vehicle undercoating is a little bit quicker and easier to apply.

* Oftentimes, polyurethane undercoating will come in Canisters ready to preload into an application gun.

* This type of sealant 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.

* It also sands quickly in case a need to perform bodywork and can be painted over.

* On the flip side, this type of car undercoating generally requires a little bit more surface prep work before
applying -- sanding and applying an etching primer to bare metals before using are generally
recommended.

PROS
1. It provides a layer of protection against corrosion.

2. It will extend the life of your vehicle.

3. it can be applied to damaged areas.

CONS.
1. It won't do anything about the corrosion which is already present.

2. It works best on new cars.

3. Most vehicles make it five years before corrosion begins to show.