Does the Underbody Armor Work?
2 Answers
Automotive underbody armor is very useful. Here are the details: 1. Automotive underbody armor is a high-tech adhesive rubber asphalt coating: It is non-toxic, has high coverage, and strong adhesion. It can be sprayed on exposed parts of the vehicle such as the underbody, wheel hubs, fuel tank, lower panels, and trunk. After drying quickly, it forms a firm elastic protective layer that prevents impacts from flying stones and gravel, avoids moisture, acid rain, and salt from corroding the metal parts of the underbody, prevents rust and corrosion, and ensures the driver's safety. 2. The process of applying underbody armor: Spraying a 2-4mm thick layer of elastic sealing material under the vehicle's underbody constitutes underbody armor. 3. Underbody armor can provide heat insulation and save fuel: In summer, when facing extremely high ground temperatures, the vehicle's underbody can easily transfer heat into the cabin. With underbody armor, the honeycomb-structured sound-absorbing factors in the armor film can block most of the heat, keeping more of the air conditioning's cool air inside the cabin and also reducing fuel consumption.
I spent a few years working at an auto repair shop and saw many cases of rusted-through car underbodies. Undercoating really works, especially those types with resin or rubber coatings. It blocks corrosive stuff like rainwater and de-icing salts, and even mitigates damage from small stone impacts. My hometown is in the north where roads get heavily salted - a colleague's car without undercoating developed severe underbody rust in less than five years, costing nearly 10,000 yuan to repair. The best time to apply undercoating is when the car is new, as the underbody is clean for proper application. Always choose products from reputable manufacturers, as inferior coatings may crack within a year or two. Regular inspections of coating integrity are crucial, with touch-up sprays needed for any damaged areas.
