Underbody Coating
Underbody coating:
It is a type of defensive layer that's applied to the undercarriage of vehicles. The best time to apply an undercoating to a car is when the car is new because there is no corrosion on the underside of the car.
It can prevent further damage to the undercarriage.
The main purpose of undercoating is to check rust especially in the body components like frame rails along with other exposed metal parts.
follow the below image of difference of underbody coating visually:
Why do we need underbody coating?
Mainly reasons are :
(i)A must have if you live in coastal areas.
(ii)Or if you live near muddy roads.
(iii)It also affects your resale value.
Advantages of underbody coating:
(i) Protects against rust & corrosion:
The primary objective of getting underbody coating done is preventing metal components that are exposed on the bottom side of the car to damage from corrosion. You can shut out the Adverse effects of corrosion on your car by simply applying a rubberised anti-rust coating all over the belly of your car.
(ii)Reduces NVH(Noise Vibration Harshness) levels:
Our country is filled with roads having uneven patches and potholes and while we manoeuvre our 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.
(iii)Prevents paint chipping:
Running on the highway or while pacing through a city road, you will often encounter sharp gravel or any other unattended object hitting the belly of your car with high momentum. This scrapes and chips off the metal from down below. A thick layer of Underbody Coating definitely comes to aid and minimises the effects of such contacts on the body.
(iv)Protects vital component:
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 in order to save yourself from a hefty repair bill, a considerably less expensive Anti-Rust Coating is a must.
Dis-advantage of underbody coating:
(i)Cost is higher but lesser compare to value of changing or buy the new car.
Types of undercoating:
(i)Rubberized underbody coating.
(ii)Wax based underbody coating.
(iii)Asphalt based automotive undercoating.
( iv)Polyurethane underbody coating.
Difference between rust protection and undercoating:
It is simple, rust protection goes inside your vehicle and undercoating is used for protection outside of the vehicle.
Rubberized underbody coating:
It is easy to apply and offers sound-cushioning as well as protection from dust, moisture, and dings or dents.
In addition to your 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 for bodywork, can be easily removed with an undercoating removal spray.
Overall,rubberized coating is generally the best option for protecting your vehicle's undercarriage, as it provides the simplest and best protective measures against rust and moisture.
Polyurethane undercoating:
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 unoxidized metal. It also sands quickly in case you'll need to perform bodywork and can be painted over.
On the flipside, 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
Wax based underbody coating:
A paraffin-based undercoating will be the cheapest and quickest option available with which to protect the undercarriage of your vehicle. However, keep in mind that 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
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 sold in five gallon containers, 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.