Can You Repair Car Paint on Rainy Days?

[VanFernando]

It is not advisable to repair car paint on rainy days; it is recommended to wait until sunny weather. If car paint is applied on rainy days, it must first be dried in a baking room before the car can be driven. Otherwise, the paint may not dry properly, affecting its appearance. Additionally, if the putty is not dry, the paint may not adhere well and could bubble. The method for repairing car paint is as follows: 1. Inspect the scratched area of the car paint and sand it with sandpaper; 2. Apply putty to the scratched area; 3. Once the putty is dry, sand it with sandpaper; 4. Cover the surrounding area of the scratch with newspaper; 5. Spray the scratched area with touch-up paint.

[StBrielle]

Speaking of whether you can touch up car paint on rainy days, I learned from personal experience during a previous repair that it's really not suitable. The air is damp, and the humidity is too high. The newly applied paint absorbs moisture, dries very slowly, and sometimes doesn't fully dry overnight, which can lead to bubbling or peeling. If rain directly hits the painted surface, it makes things even worse—the paint can become blotchy or develop cracks. I recommend waiting for good weather when the temperature is around 20°C and the humidity is low for the best results. It's ideal to work in a garage where the environment is drier and safer. Additionally, surface cleaning must be thorough, but it's hard to ensure dryness after cleaning on a rainy day. So be patient and avoid rainy days to ensure the paint is smooth and even, preventing the need for rework in the long run.

[JamesonRose]

I once had a personal experience where I was in a hurry to touch up a small scratch on my car's body on a rainy day, thinking I could handle it. After applying the paint, I discovered the next day that the paint surface was full of bubbles, wet and not properly adhered, even affecting the surrounding area. A few days later, rust started to appear. I regretted not waiting for a sunny day and had to start over, costing me extra time and money. Since then, I always advise people not to do car paint repairs on rainy days—humidity is an invisible killer that worsens the paint's fluidity and leads to uneven application. It's better to choose a dry day for the job or visit a professional shop to use indoor equipment, avoiding such hassles. Doing it right the first time saves effort and ensures the car's appearance is well-maintained, making it truly worthwhile.

[MacKaden]

I strongly advise against touch-up painting in rainy conditions. Firstly, high humidity prevents proper paint curing, leading to bubbling and cracking over time, which can corrode the bodywork and shorten the vehicle's lifespan. Secondly, operational difficulties arise from rain droplets and poor visibility, compromising precision. From a safety perspective, driving with uncured paint poses risks, and any subsequent scratches would cause more severe damage. Economically, redoing a botched job doubles the cost. I recommend waiting for sunny weather or performing the work indoors when conditions are dry – protecting your paint means preserving your car's overall integrity. Even for minor touch-ups, patience for favorable weather yields more reliable results.