Underbody Coating

UNDERBODY COATINGS:

        Underbody coatings are those which are used to prevent car bodies against rust & corrosion. This underbody coating helps in protection from dust and moisture also some other factors such as poor road conditions, rocks getting thrown from tires and denting the metal and salt from water during monsoon which plays an important role in damaging the underbelly of a car.

Types of Undercoating

1. Rubberized Underbody 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 Automotive Undercoating
   

   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.

Advantages of Undercoating

• Fights 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.

• Absorbs Noise

  Believe it or not, 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.

• Reinforcement
  

  If your car comes with stock underbody coating, using another coating on top of it, is not going to hurt. 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.

1. Less Effective If Corrosion Already Exists

Once there is rust underneath, vehicle undercoating won’t give you many effective results. Though the coating will be covering the damage that already took place, the rust inside will continue its job to lead to corrosion.

Undercoating slows down the process, but you must remove the rust first before coating. 

2. Works Well on New Vehicles 

If your car is already old enough or you bought a used one, then undercoating wouldn’t be a good choice. As coating the underneath of a used or old car requires the removal of all the residue, it will cost you more which is definitely not the best idea.

3. Not Impervious to Damage

An undercoating doesn’t always mean protection for a fixed amount of time. Based on your road trips and the things you have to drive against, the lifespan of your coating can be minimal.

If you are bound to drive on dirty areas, gravel roads, it can reduce the quality of this protective layer earlier than expected. 

4. Need to Reapply Every 3 to 5 Years 

For ongoing protection, you need to make sure you are ready to invest in undercoating your vehicle every 3 to 5 years. Most users can ride their vehicles for 5 years without worrying much once the underpart is coated.

But if you happen to live in coastal areas then you might need to do it every 3 years for best results.