Dang it. It is the 225 AC box.
I wish you had posted that just a wee bit sooner. I just bought 5 lbs of 7018 at Lowes.
But, I also bought 5 lbs of 6011.

It was touted as working the best on rusty stuff.
I'll return the 7018. Those 2 were really all they had. Well, they might have had some 6013, but I remember not liking those.
I'll use the 6011 and see what it looks like. Pretty isn't really a BIG worry for me. Nobody but me will look there anyway.
Larry W.