Underbody Coating

UNDERBODY COATING

Cars around the world are driven in different conditions such as sand, road,mud and snow, the under surface of the vehicle is prone to damage like scratches, corrosion, stone chipping etc. Underbody coating helps in protecting the under surface of the vehicle and optimizing the service life of the vehicle. It also protects parts like internal body panels, frame rails and other inner cavities that are not physically accessible but are prone to corrosion. During the manufacture of a car or any other vehicle a layer of protective coating is sprayed on the under surface and also various areas are provided or covered with sealants to make the under side of the vehicle waterproof.just like car repairs and service it is important to keep check on the underbody coating, it has to redone once in a while to maintain the service life for the vehicle may for a duration of a few years or after certain number of kilometers.
The Difference Between Rust Protection and Undercoating
Undercoating and rust protection often go hand-in-hand, but they are actually two different things. Rust protection generally goes inside your vehicle, while undercoating is used for protection outside of the vehicle, and there are a variety of coatings available. Depending on the level of damage and how much protection you want for your vehicle will determine which type of automotive undercoating you choose.

Different Types of Vehicle Undercoating
Having undercoating professionally applied to your vehicle can be expensive, but fortunately, if your budget is tight, you can do it yourself for a fraction of the price. Here are some of the various types of undercoating available.

Rubberized Undercoating
Rubberized vehicle undercoating 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
The other option for undercoating your vehicle is to use a polyurethane-based sealant. 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 or Paraffin-Based Undercoatings
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.

Advantage of underbody coating

• It provides a layer of protection against corrosion.
• It can be self applied
• It may help to reduce interior noise.
• Disadvantage of underbody coating
• It won't do anything about the corrosion which is already present.
  It adds weight to the vehicle.
  It must be reapplied every 3 to 5 years for best results.