How Many Days Does It Take for the Chassis Armor to Dry Completely?
2 Answers
Chassis armor generally takes more than 3 days to dry completely. Below are the functions of chassis armor: 1. Anti-corrosion for the chassis: The rusting of a car usually starts from the bottom plate. Even cars that have only been driven for three to five years may begin to show rust spots on the side beams. The southern climate is inherently humid, and each car wash leaves residual water at the bottom, which can become a potential corrosive factor over time, damaging your beloved car. 2. Protection against stone impacts: While driving, small stones can be kicked up by the wheels. The impact force of these stones on the bottom plate is directly proportional to the vehicle's speed. For example, a 10-gram small stone can exert an impact force up to 30,000 times its own weight at a speed of 80 km/h. 3. Vibration damping: The engine and wheels are fixed to the car's floor. Vibrations at certain frequencies can resonate with the floor, causing discomfort. Proper bottom protection can eliminate this resonance, providing peace of mind. 4. Noise reduction: When driving on highways, the friction noise between the wheels and the road surface increases with speed. A well-protected bottom can significantly reduce interior noise.
When it comes to the drying time of undercoating, it really depends on the specific product used and the weather conditions at the time. Generally, for most standard water-based or oil-based coatings, the surface may dry within a few hours, but complete curing usually takes about 1 to 3 days. In high humidity or rainy conditions during winter, the time may extend to 3 to 5 days, while in hot and dry summer weather, it might feel hardened within a day. I must emphasize not to rush driving the car; if the coating isn’t fully cured, rainwater or debris can cause peeling or corrosion issues, compromising the protective effect. My neighbor once rushed it and ended up seeing bubbles in the coating within a week—he regretted not waiting. The best practice is to check the product manual, as brands vary significantly—for example, some quick-dry types may only need 24 hours, while thick rust-proof coatings may require over 72 hours. In short, safety first: let it dry in a ventilated, shaded area and ensure the coating is smooth and free of watermarks before proceeding.
