
The original vehicle does not come with underbody armor; it needs to be installed afterward. Impact Protection: During driving, it's inevitable for small stones to be kicked up and hit the underbody of the car. Over time, this can cause significant damage to the underbody. Installing underbody armor can prevent such impacts from stones, thereby protecting the integrity of the car's underbody. Scratch Protection: On different road sections, there are inevitably some raised areas that can cause wear to the car's underbody. Adding underbody armor can prevent such wear, offering greater protection to the car's underbody.

Regarding the chassis armor of the Xingrui, I have specifically researched it. This car comes with rust-proof treatment from the factory, with a layer of anti-rust paint sprayed on the chassis, but to be honest, the thickness is relatively thin. After driving it for half a year, I specifically went to an auto repair shop to have additional chassis armor coating applied, as I often drive on rural roads and was worried about stones scratching the chassis. The installation cost me 600 yuan, and the mechanic removed the wheels to spray it very carefully. If you live in coastal areas or places where snow-melting agents are used in winter, I strongly recommend installing it to prevent chassis rust and extend the vehicle's lifespan. After the coating, I did notice that the chassis noise was reduced when driving on rough roads, so the money was well spent.

I've been driving the Xingrui for two years and have specifically observed the undercarriage condition. The car indeed comes with basic rust-proof coating, but it's not quite enough for families like ours who love road trips. Before driving the Sichuan-Tibet line last year, I specifically went to get an undercarriage armor coating. Now, the undercarriage still looks clean without any rust. I suggest fellow car owners decide based on their driving environment. If you mainly drive in the city, the factory coating is sufficient, but if you frequently drive on mountain roads or in humid areas, it's better to add an extra spray. I chose a rubber-based armor material, and during the application, the exhaust pipe and fuel tank guard had to be removed. The whole process took about four hours, and after completion, even the sound over speed bumps became more muffled.

The Xingrui's underbody does come with anti-rust treatment from the factory, which is a thin gray coating. I didn't apply additional undercoating myself, but my neighbor had it sprayed right after purchasing the new car, and the difference is noticeable. After two years, my car developed some minor rust spots on the underbody, while his still looks brand new. It's recommended to get it done early for a new car, as it's too late once rust appears. The cost is approximately 500-800 yuan, and opting for environmentally friendly resin materials ensures better durability. During application, remind the technician to properly leave openings and avoid blocking drainage holes.

As someone who has been paying long-term attention to car , I believe the factory rustproofing treatment on the Xingrui is just passable. The new car's chassis has a dusty-looking coating, but you can tell it's quite thin when you rub it with your finger. The factory protection around the rear wheel arches is particularly inadequate, so I specifically asked the technician to focus on that area when applying additional coating. A reminder to everyone: when it comes to underbody armor, thicker isn't necessarily better. Generally, a 2-3mm coating is optimal—anything thicker may peel off more easily. Northern car owners should pay extra attention, as road salt is especially corrosive to the chassis.

I just picked up my Xingrui and immediately got tangled up in the undercoating dilemma, consulting three different repair shops. The all agreed that the factory rustproofing is sufficient for urban commuting, but considering our basement parking garage is perpetually damp, I opted for an additional undercoating spray. Material selection is crucial: resin-based coatings offer better noise insulation, while rubber-based ones are more impact-resistant. During application, it's best to supervise closely—the wheel arch liners need to be removed for thorough spraying. Now I drive through puddles on rainy days without a worry, treating the few hundred yuan extra as insurance for my chassis.


