Car scratch repair using spray paint
With spray paint, you can effectively and affordably conceal scratches on your car's paint and restore its original shine. Small scratches or surface marks can be fixed by yourself, while deeper scratches that reach the primer or metal may require professional assistance. It is important to repair scratches quickly, as delays can expose the paint or the metal underneath to weather conditions and cause additional issues.
A car's paint usually consists of three layers: clear coat, base coat and primer. Identifying the type and depth of the scratch helps determine the correct repair method. If the scratch has not reached the colored layer, it is likely a minor scratch that can be removed by polishing.
Here are the steps to repair scratches with tinted spray paint:
1. Get a spray paint that exactly matches your car's color
The best way to ensure a precise color match is to look up the factory color code in the service manual or on the type plate. Often, the year and make are also sufficient. If you can’t find the code, Billackering.eu customer service can help you find the right color.
2. Test the spray paint in a discreet area
Even if you are confident about the color match, it’s best to test it first. Spray cans contain mixed paint, which can sometimes lead to slight variations. Even with the exact color code, the paint might not fully match your car’s current finish, as it may have changed over time due to sun exposure or aging. Testing beforehand avoids disappointment. Always shake the spray can thoroughly. This also prevents it from "shimmering" in the spray.
3. Preparation
Once you’ve confirmed the color, prepare the scratch and the surrounding area. Clean it with silicone remover to ensure you see the damage clearly and avoid creating new scratches by sanding over dirt. Sand the scratch open using a sanding block. A scratch that reaches the base coat can be gently sanded with p320 paper, then gradually with finer grit. Finish by removing the sanding marks and matting the area around with p600 paper or a scuff pad. Clean again with silicone remover and wipe off any dust with a tack cloth.
4. Primer
After sanding, a deeper scratch will require primer to even out the surface. Mask off surrounding areas so that overspray does not reach parts you’re not working on. A protective film covering the car works well. Shake the primer thoroughly and apply it according to the instructions. Let it dry and sand smooth with p400. Clean the surface again with silicone remover.
5. Base coat
Shake the spray can thoroughly to mix the pigments evenly. Spray from about 20 cm away with smooth, even strokes over the primed and sanded area. Apply 1.5–2.5 coats in total. The first coat should be light and semi-transparent (a mist coat). Allow 10–15 minutes of drying time between coats. Once dry, the paint will look matte. After flash-off, spray a full coverage coat and let it dry. If needed, add another coat. Allow at least 45 minutes of drying before applying clear coat. Tip: Right after painting, the surface is still wet and glossy, giving you an idea of how it will look once clear coated.
6. Clear coat
Shake the clear coat can well and start spraying. Apply evenly over the repaired area from about 20 cm away. Spray 2–3 coats. Allow 10–15 minutes of drying time between coats. The clear coat will be dust dry after about one hour, but let it cure at least 24 hours before touching or reassembling parts.
7. Finishing
Did you get runs or just want to polish the surface? Let the clear coat dry for 1–2 weeks before working on it further. The lacquer needs time to cure properly.
Tips for success:
- Work in a dust-free and well-ventilated area. Wear gloves and a respirator.
- Avoid direct sunlight and humid conditions.
- Test the spray on cardboard or plywood before painting the car.
- Take your time – don’t rush the drying process.
- Best results are achieved at around +20 °C.
Remember that the exact process and products may vary depending on the depth of the scratch and the spray paint instructions. For deep scratches that reach metal, filler may be necessary. Always follow the manufacturer’s instructions for the products you use.