Underbody Coating

Under Body coating

Underbody coating is a thick cladding (typically made of rubber) that is placed uniformly to the car’s underside. When the automobile is fresh off the lot and spotless, it is usually sprayed or painted on. But it’s acceptable if you apply the undercoating after a couple of years. This is because it might protect the undercarriage from additional harm.

Purpose of under body coating

• 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.

• 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.

• 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 in order to save yourself from a hefty repair bill, a considerably less expensive Anti-Rust Coating is a must.

• Reduces NVH (Noise Vibrations 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.

Underbody coating methods

• Rubberized Underbody Coating :

This is widely considered to be the best underbody coating for your car. It protects the underbody from scratches and keeps it properly. It’s also not difficult to apply this to the undercarriage. This can be done at the authorized service center or by the local repair shop at a reasonable price. Rubberized coating is ideal if you want to keep the road noise to a minimum and rust and corrosion away.

• Wax Based Underbody Coating

This transitory undercoating will, on the whole, fade away after a few months. On the plus side, wax-based undercoating is resistant to dampness. It is also the most cost-effective alternative.

• Asphalt Based Automotive Undercoating

Suitable for lorries, trucks, and other heavy vehicles. In comparison to rubber-based coatings, this gives a higher level of protection. Asphalt-based coatings, on the other hand, incorporate a small quantity of rubber for sound insulation. The application of this coating, however, takes some time.

• Polyurethane Underbody Coating

This covering seals breaks and fractures in the vehicle’s underbody. It provides strong corrosion resistance and also binds to the metal. Unlike an asphalt-based coating, the polyurethane coating may be painted over.

Modern procedure for automotive coating processes:

• Pre-Treatment

The excess material is removed and the surface is cleaned to make it suitable for the coating process. The dirt and welding residue is cleaned and removed during pre-treatment. The pre-treatment also consists of 4 stages [Hot Water, Degreaser, Surface Conditioner, Phosphate] which are done before electrode deposition processes. Electrodeposition - The electrode deposition coat provides rust and corrosión protection. It is done over Body in White. The metal underbody and the frames are coated to prevent corrosion. While areas that are not coated are primed before applying the additional coating.

• Rustproof materíals [Sealers/PVC]

The underbody coating has some specific advantages when compared to that of electrode deposition. The underbody coating has noise reduction, vibration reduction, and anti chipping properties in addition to that of underbody coating.

• Primer

The primer is applied over the top body of a car to improve weather resistance, improve appearance, chipping resistance, improve adhesion between electrodeposition coat and topcoat, and reduce the volatile organic compounds that cause the atmospheric pollution.

• Topcoat

The topcoat has two stages, they are base coat and clear coat. The base coat has the primary coloring pigment, while the clearcoat provides a protective coating against environmental effects, ultraviolet light degradation, unmatched color retention and a smooth even finish.