Underbody Coating
Introduction
Underbody coating provides long term protection from corrosion to car's underbody. It also protects parts like internal body panels, frame rails and other inner cavities that are not physically accessible but are prone to corrosion.Underbody coating is usually a dense cladding (often based on rubber) applied uniformly to the undercarriage of the automobile. It is normally sprayed or painted on when the car is just out of the dealership and is clean. But even if you are getting the undercoating applied after a couple of years, it's fine too.
Purpose Of Under Body Coating
- Prevent from ston chip.
- prevent point chipping.
- Protect againt rust & Corrosion.
- External influence.
- Protects vital components.
- keep the value.
- Reduces NVH level.
Types of Under Body Coating
01. Rubberized undercoating
Rubberized undercoating is easy to apply, and generally offers the best protective coating for your car’s undercarriage. It cushions surfaces against moisture, rust, dings, and dents. Rubberized undercoating is safe to use on quarter panels and wheel wells and dries with a soft rubbery finish.
02. Asphalt-based undercoating
Asphalt-based undercoatingoffers a higher level of protection suitable for large trucks, recreational vehicles, and heavy machinery. It’s formulated with some bits of rubberized material to aid in noise reduction. It offers extra protection against chips and moisture but is not paintable and, therefore, only suitable for undercarriages.
03. Polyurethane Undercoating
Polyurethane coating is easy to apply and works by sealing up cracks and seams. The compound displaces salt and moisture and protects the unoxidized metal from rust. It’s often sold in canisters that are ready to preload into an application gun. It, however, requires some surface prep work before application, like degreasing, and applying an etching primer to the bare metal.
04. Wax or paraffin-based undercoating
Wax or paraffin-based undercoating sprays are the cheapest and quickest options available. However, their results don’t last long, and you may have to apply a fresh coat after only a few months. In addition, the wax isn’t very adhesive on a metal surface. Its main advantage is that it seeps quickly into cracks and seams, and offers moderate protective properties against moisture.
Pros.-
- It provide a layer of protection against corrosion.
- It will extend the life of vehicle.
- It can be self applied.
- It may help to reduce interior noise.
Cons.-
- It won't do anything about the corrosion which is already present.
- It works best on new cars.
- It adds weight to the vehicle.