Underbody Coating
UNDERBODY COATING:
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. This is because it can prevent further damage to the undercarriage. The main purpose of undercoating is to check rust especially in the body components like frame rails along with other exposed metal parts. Underbody coating can also reduce wear and tear.
DIFFERENT TYPES OF UNDERBODY COATING:
- RUBBERISED UNDERBODY COATING:
This is generally thought of as the best underbody coating for your car. It preserves the underbody well, protecting it from scratches.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.
- WAX OR PARAFFIN 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. A paraffin-based undercoating will be the cheapest and quickest option available with which to protect the undercarriage of your vehicle.
Wax-based undercoating’s 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 AUTOMOTIVE 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. 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.
- 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. 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.
VARIOUS TYPES OF UNDERBODY COATINGS USED IN CAR:
ADVANTAGES OF UNDERBODY COATING:
- Fights with rust against corrosion
- Absorbs noise
- Reinforcement
- Prolongs vehicle life
DISADVANTAGES OF UNDERBODY COATING:
- Adds weight to the vehicle
- Quite costly
- Not much useful if corrosion is already present.