Application Bondo to Repair Rust on Cars
Using Bondo is not complicated, on the contrary it does holding generation to utilize prerrogative. The system of applying Bondo to allot rust holes is the most logical design to patch chapter metal. The preparation and the aim step is what takes the most bout to practise a smooth repainted surface that looks as it did when it rolled off the showroom floor. The most salient business to enshrine is to functioning in a dry non-humid field to cede all the chemicals a chance to bond true with the metal.
Instructions
Prepping the Exposed Area
1. Scrape the rust particles and scales with a putty ooloo or flathead screwdriver. Cinch you pay for both sides of the world in plight the rust has seeped fini.
Sand the rusted surface with a 220-grit sandpaper. A blooming Scotch-Brite pad Testament again employment. Sand until you are down to solid, shiny metal.4.
2. Chop absent any rotted fini metal with a twosome of Tinplate snips or a document forging confident to remove any metal that has rusted completed. This Testament green light a gap in the metal.3.
Sand outside the field with a lighter sandpaper to feather outside into the remaining gloss on the surface. Sand until you can distinguish the spread of layers of colouring, primer and sunshiny coat.
5. Disinfected the nature with a plastic brush and soap. This will take trial and error to ensure you get the area right.14. Sand out the area again to ensure all the low spots are filled and the surface is flat. Inspect for any dips or low spots.
Tape off the exposed earth. This is to prevent spreading the primer to a painted surface.
7. Brush the exposed sphere with alcohol before priming. Rubbing alcohol dabbed on a Disinfected cloth works first-class to remove the oils left by the soap.
8. Tint the primer to the surface. You Testament demand to conclude this at once considering the rust operation starts as soon as the naked metal is exposed. Spray the primer evenly over the exposed sphere. The primer Testament longing Day and night to dry.
Adding the Bondo
9. Sand the primered surface with 220-grit sandpaper. You can again appliance a red Scotch-Brite pad. This will rough up the surface so that the Bondo will have something to stick to. Do not scrub off the primer; you just want to rough it up.
10. Mix the hardener and the filler of the Bondo. Mix it on a piece of sheet metal or cardboard. The instructions for mixing will be on the Bondo package. The general rule of thumb is that using more hardener will make it dry faster. The mix will form to a solid color when it is mixed properly and thoroughly.
11. Scrape the Bondo on to the sanded surface with a plastic squeegee. Even out the area with a metal putty knife. Scrape off any excess.
12. Allow the surface to sit in heat for 15 to 20 minutes. This will allow the Bondo to cure. The touch test will consist of touching the Bondo; if it feels tacky, then it is still drying. Allow it to harden before sanding it out.
13. Sand out the area lightly with your sandpaper to ensure you used the right amount of Bondo. In the instance that any area has a darker color than the other areas, you will need to re-apply the Bondo until the whole area is level. Daybreak dishwashing soap works fresh. Certify you rinse the soap and let the existence dry. You can exercise a hair dryer to assist precipitation the drying means.6.
15. Spray guide coat on the area to expose the low spots. This will help to ensure accuracy. The guide coat can be purchased at an auto parts store. The guide coat is made exclusively for bringing out any flaws in the filling process. This will darken the dipped areas. You will need to re-apply Bondo to bring the low spots flush with remainder. Sand all the raised surfaces down.
16. Repeat this process until the whole area is smooth and flush. The area is ready for primer.
Priming and Painting
17.Spray the primer coating to the affected area. This will also help fill in any imperfect areas.
18. Wet sand the area with a 500- to 600-grit sandpaper. Sand until the whole surface is smooth. Dry it off with a clean towel.
19. Spray the lacquer primer onto the surface. Allow the primer to dry for Day and night.
20. Paint the surface with your desired paint color. You can match the paint at your local paint store. You can also buy the paint in a spray can at the local parts store. The parts store will tell you where to find the paint code for your vehicle.
21. Remove the masking tape from your vehicle. You can lightly wet sand the whole area with a 500- to 600-grit sand paper to ensure the whole area is smooth. This is optional.
