Underbody Coating

UNDER BODY COATING :-

During the manufacturing of a car , a car body is made of various materials like iron , steel, aluminium etc . In OEM's to make a car light weight without decreasing its strength various alloys of iron and steel are used .  over a period of time  , due to oxidization , iron corrodes  . this corrosion can weaken and damage the structure of vehicle . to prevent this from happening , underbody coatings are done on the car body .This coating protects the body from corrosion , dust , it also has chip resistant properties as well .  

Types of underbody coating - 

1 - Rubberised coating  -  

Rubberised coating gives a hard rubber like coating on the under body of car . this coating protects the car from dust , moisture and rust . this coating also has anti chipping properties . this coating is easy to apply . 

2 - Wax or paraffin based coating - 

This type of coating is the cheapest coating available to be done on underbody of car . however , the lifespan of this coating is very less and it needs to be reapplied again twice or thrice a year . before the reapplication of coating , the previous coating has to be completely stripped off and the vehicle has to be prepped nicely . 

3 - Polyurethane coating -

This coating applies a layer of polyurethane on the underbody of the car . it protects the vehicle from abrasion , dust , rust and other deteriorating process . while applying this coating the surface needs to be prepped and cleaned from any previous coating or any dust ,moisture ,  or other particles .  

4 - Zinc coating  - 

This type of coating applies  a  protective layer of zinc on part which protects it from corrosion , dust etc. It increases the life of component . application of this coating also needs a surface prep done onto the part or underbody . This coating is more durable than other coating . 

ADVANTAGES  - 

• Under body coating protects the car's underbody from rust , wear  , moisture , etc . 
• The thick underbody coating can also act as noise dampners and can reduce road noise and tire noise and make the car cabin quieter.
• Underbody coating gives the car a clean look . 

DISADVANTAGES - 

• Underbody coating can be costly depending upon the type of coating you use . 
• While application of coating , the surface must be preped and cleaned properly , if not then it will lead to chipping of the coating . 
• while application of coating , if care is not taken and coating is applied onto any mechanical parts , it may lead to failure of  that part . 

Below is the picture of before and after underbody coating -