How to Smooth Out After Applying Touch-Up Paint Pen?
2 Answers
Methods for smoothing out after applying a touch-up paint pen are as follows: 1. Smoothing with wet sandpaper. You can use 2000-grit wet sandpaper for sanding. After the touch-up paint has dried, soak the wet sandpaper in soapy water for 20-30 minutes to make it softer, then sand the uneven paint surface until the thickness of the touch-up matches that of the original factory paint. 2. Smoothing with toothpaste. Toothpaste can serve as a mild abrasive. First, squeeze toothpaste onto a soft, clean towel or sponge, then gently rub the uneven areas until the touch-up paint thickness is level with the original factory paint. 3. For better results, you can also use polishing compound for finishing.
Last time I used a touch-up pen to repair scratches on my car door, I realized the key to a smooth finish lies in timing. The touch-up paint dries quickly after application, so you must use the built-in scraper on the pen cap to lightly scrape the surface twice within 2 minutes. The first pass should be vertical and gentle, like smoothing frosting to eliminate bumps; then, when semi-dry, scrape again at a 45-degree angle in a cross pattern to fill in any depressions. Avoid repeated applications—wait until fully dry before sanding. I tried sanding too soon and ended up scuffing the primer! After scraping, lightly buff the surface with 800-grit wet sandpaper, then apply a thin coat of blending clear coat to feather the edges. In this weather, work in a shaded area below 25°C, or the paint may bubble or warp.
