Does the Chassis Coating Have Odor?
2 Answers
Chassis coating does have an odor, but the odor is relatively mild. Chassis Selection: There are water-based and oil-based chassis coatings. Water-based chassis coatings have a milder odor, are easier to clean, and offer better gloss and flexibility compared to oil-based ones. Oil-based chassis coatings have strong resistance to low temperatures and dry quickly, but require gasoline for cleaning. Choose water-based coatings for good driving environments and oil-based for harsh conditions. Main Functions of Chassis Coating: Protects the chassis from rust and corrosion, provides sound insulation, heat insulation, and prevents bottoming out. Since the chassis frequently comes into contact with rainwater and road surfaces, it is prone to rust. You can choose based on your vehicle's condition.
As a long-time car owner, I recently had undercoating applied at a repair shop and noticed a distinct burnt rubber-like odor. The newly applied coating contains resins and solvents that slowly volatilize after installation, creating a noticeable smell—especially when parked in underground garages where you can detect it upon opening the door. However, don’t worry; this is completely normal, and the odor will gradually fade over time. I recommend parking in well-ventilated areas for a few days after driving or using a fan to accelerate drying by directing airflow at the undercarriage. Different types of undercoating vary significantly: asphalt-based products have a stronger odor, while water-based alternatives are much milder. From a vehicle protection standpoint, the coating effectively prevents rust and corrosion, making the temporary odor a minor issue—it typically diminishes within 3–5 days. If the smell persists beyond a week or becomes pungent, it may warrant checking the product quality. Overall, undercoating is worth installing but requires attention during the initial phase.
