Underbody Coating

Underseal also called Undercoating is a thick resilient coating applied to the underbody or chassis of an automobile to protect against impact damage from small stones, which would rapidly chip ordinary paint, allowing rusting to begin. A bitumen - based compound was used, but after approximately a decade, this becomes brittle and water can become trapped between the underseal and body metal, counterproduv=ctively creating a more favorable environment for rust than if no underseal was applied at all. Wax-based underseals do not have this disadvantage, but can be eroded and eventually washed off by enthusiastic use of a hot pressure washer. Rubber-based underseals are also sometimes used.

Vehicles for sale in some territories are not undersealed, because the climate is not sufficiently aggressive to warrant it. If such a vehicle is subsequently aggressive warrant it. If such a vehicle is subsequently imported into a country with high rainfall, cold winters, and where salting of the roads are common, the application of underseal is strongly recommended to ensure the vehicle has a long life.

Types of Under-Body Coating

• Rubberized Under Coating
• Wax Under Body Coating
• Asphalt Based Automotive Coating
• Polyurethane Underbody Coating

Advantages of Underbody Coating

• Fights Rust
• Prolongs Car Life
• Reinforcement
• Absorbs Noise

Disadvantages of Underbody Coating

• Not effective on cars with corrosion
• Doesn't work well on old cars
• Useless on new cars
• Makes one car heavier
• Could be Damaged