
Toxic. Modern vehicles do not require chassis armor application. New cars already come with anti-corrosion treatment from the factory. Additional information: 1. The functions of chassis armor include corrosion prevention, rust protection, and noise insulation. 2. Passenger cars are primarily designed for transporting passengers and their personal belongings or temporary items, with no more than 9 seats including the driver's seat. 3. Passenger cars are categorized into the following 11 types: standard passenger car, convertible, luxury car, compact car, roadster, hatchback, station wagon, multi-purpose vehicle (MPV), forward control passenger car, off-road vehicle, and special-purpose passenger car. 4. Commercial vehicles are designed for transporting passengers or goods and can tow trailers, excluding passenger cars. Main types include: buses, semi-trailer tractors, and trucks.

As a veteran DIYer who frequently applies undercoating, I must say there's a distinct chemical smell during application - especially with solvent-based undercoating like asphalt-based products. Before fully curing, they release VOC emissions that may irritate respiratory systems. I always choose well-ventilated areas and wear masks/gloves when applying. However, once fully cured and dried, they become essentially harmless. Having used several undercoating products, I've found solvent-free eco-friendly types from reputable brands leave no odor or health concerns after drying. The key is selecting quality products (avoiding cheap knockoffs), following proper procedures, and allowing 24-hour drying before driving. Undercoating effectively prevents underbody rust during daily driving - very practical indeed. With proper precautions, there's no need to worry about toxicity.

As someone who prioritizes health, I focused on safety when choosing an undercoating. There may be toxic risks when the coating is not yet cured, such as volatile solvents causing dizziness, so ventilation and protective gear are necessary during application. Once dried and VOCs have evaporated, it becomes non-toxic. I inquired about the product ingredients, and modern eco-friendly undercoatings, like water-based formulas, leave minimal residue. It's advisable to purchase brands with non-toxic certifications and avoid confined spaces during application. After curing, normal vehicle use is safe, and the rust-proofing effect also protects the car's condition. Daily use is worry-free, just avoid prolonged exposure during the application process.

From an environmental perspective, chassis coating may release VOCs during wet application, posing potential air pollution risks. However, once fully cured, toxicity concerns are minimal. I opt for solvent-free water-based chassis coatings to reduce environmental impact. Ensure proper ventilation during application and complete curing for safety. When using high-quality formulations like lead-free products, long-term vehicle use remains harmless while providing rust protection and extending vehicle lifespan. Choosing compliant brands ensures simple operation and eco-friendliness.


