How To Weld Aluminum Block. After cleaning the crack with a wire brush you should wipe it down with rubbing alcohol. For those times when solid strong welds are needed over aesthetically looking beads.
After cleaning the crack with a wire brush you should wipe it down with rubbing alcohol. Let the alcohol dry before applying the JB Weld epoxy. Ad High Performance Wide Range Structural Adhesives Bonding Plastic and Metal.
Does J-B Weld Work On Aluminum Engine Block.
This means that minute particles of the Aluminum welding wire is sprayed into the weld puddle. In the past aluminums high reflectivity was a problem for laser welding. You can see it is in a window only and nothing too involved. Let the alcohol dry before applying the JB Weld epoxy.