After this, you'll want to use an old knife to apply a thin layer of cellulose stopper. Don't leave any excess around the affected area. In the final step, use a medium-grade sandpaper to make the area smoothly flow into the area surrounding the old rust spot. To finish off the repair, use a can of touch up paint, applied quickly and smoothly, overlapping the paint into the car's existing paint job. Apply the second coat after 24 hours and you're done.
To find the exact color of paint to match your vehicle, look for the car's paint color or trim code on the identification plate underneath the hood or inside the doors. You can take this number to an auto accessory shop, dealership, or auto repair shop to get an exact shade of paint so you can make the car rust repair job look professional. You can also look for the color code inside the frame of the driver's side door near the door jamb.
To help protect your vehicle from being vulnerable to more rust spots a few hundred miles down the road, there are various rust prevention techniques that come in every form, like corrosion protection coating, corrosion control coating, rust prevention coatings, automotive undercoating, rust repair, and rust paint. There are a number of companies in the market that specialize in applying rust prevention and protection techniques that will provide free estimates and information to anyone who is interested in getting their car rust repaired.
Also using basic car care such as waxing the vehicle adds another protective coating that helps run off water and it adds an extra clear layer of protection on your car to prevent any need for future car rust repair.