A while back Ernie recommended 4047 for aluminum castings repair. Higher
silicon, wets out better, less shrinkage. I've been checking around at
my local suppliers, 4047 is not to be found. The best supplier in town
does not even have a PART NUMBER to order it under.
My current choices are the usual 4043 or Coral 60 from Harris. the
latter is a brazing rod in that it does not actually melt the base metal.
I'm working on a 6 step aluminum pulley, small end has a chip.
Suggestions for an alternate rod or a good supplier??
13 years ago