- Squeeze out equal amounts of material from each of the two tubes included in the package onto a clean work surface. Mix the portions together thoroughly, using a disposable paint stirrer or wooden dowel.
- Clean the area of the crack thoroughly with household cleaner and and allow it to dry. Remove any paint, primer or rust with coarse grit sandpaper.
- Roughen the surface to be welded, using the fine grit sandpaper.
- Apply a bead of the weld along the length of the crack, using a putty knife or wooden dowel. Fill the area completely and lightly smooth the surface. Remove any excess material around the repair site with a rag.
- Allow the cold-weld to cure for 4 to 6 hours, and then use fine sandpaper to sand the compound smooth and even with the surrounding area. Wipe away any loose material with a clean rag.
- Allow the cold-weld compound to dry completely overnight and apply a coat of paint to blend the repair with the surrounding surface.
Things You Will Need
- Cold-weld compound
- Wooden dowel or paint stirrer
- Household cleaner
- Clean rags
- Coarse and fine grit sandpaper
- Putty knife
- Clean up any excess weld material with soap and water before it sets up. It stays pliable for 30 minutes after mixing the portions together.
- Set a heat lamp or light bulb near the welded area to hasten the drying time.
- Let the mixed compound portions thicken for 15 minutes in hot temperatures to prevent running and sagging during application.