Underbody Coating
1.What is Underbody Coating?
- It is important to protect all assets of our vehicle from rust,dent and other damages. the outer body of our automobile is vissible to our eyes so that can be easily identified. But i the unseen places like belly(underbody),chaises of automoile also hast to taken care. To prevent these area from rust,dent,climate changes like winter and road water salt Underbody coating is required.
- The underbody coating provides better resistance from rust,dust,moisture rocks getting thrown from the road and make dent, specialy corrision when climate changes.
- Underbody Coating provides better life for underbody parts which helps to increases the automobile life and experiences.
- It is classified in to foru majour types.
Picture:

The above picture shows the underbody coating before and after.

The above picture shows the rusty underbody of an car which required a new coating.
if the car is not taken care properly like this it loses it life and increases the service cost.
Types of Underbody Coating
1.Rubberized underbody coating:
- Rubberized underbody coating is easy to apply, it offers sound-cushioning and quite efficient over rust and dust.
- 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.
Advantages:
- it creats a protective barrier that prevent from grit and moisture that could make the component to corrode.
- The extra protection is low cost measure that compare with service cost and also increasess the life.
Disadvantages:
- Anything that gets hot, like an exhaust pipe or the engine, should not be sprayed with undercoating. If you do accidentally spray some undercoating on these areas, just be sure not to inhale any of the fumes when they get hot.
2.Polyurethane Underbody Coating:
- These type of underbody coating is easy and quick to apply.
- 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.
- The Polyurethane underbody coating comes with container loaded that can easily loaded in to applicant gun.
Advantages:
- These underboady coating fills all crack and fractures in the metal surface.
- It ofers good corrisive resistane and good bounding with metal.
- we can paint over these polyurethane coating
- it will solidifed even in room temperature.
Disadvantages:
- Slightly less alkaline resistance compare to epoxy coating
- the price of polyurethane coating is relatively high.
3.Wax or Paraffine Base Underbody Coating:
The paraffine based underbody coating is the cheapest body coating opction that is avaliable in the market for our automobile.
Advantage:
- Easy to apply and access
- secound handed vehicle are coated with in butget.
Disadvantages:
- These type of coating has to do every set of time like it has to coated every 12 mounth once.
- It is wear off quickly
- Wax based underbody coating is not truely harden.
4.Asphalt Based Underbody Coating:
- 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.
Advantages:
- Asphalt-based undercoating generally contains a little bit of rubberized material that sets up firmly and also helps soften noise.
- These underbody coating provide high resistance on rust.
- It is best for undercarriage.
Disadvantages:
- This type of undercoating also needs more cure time than the other three.
- It is not paintable.