Quote Originally Posted by gssixgun View Post
Three different types of Black stuff on razors

Water stains = black on the surface only

Black rust = Rough surface sometimes a spiderweb like appearance too, has pits that are visible

Devil's spit = Smooth black surface, no outward signs of pitting or underlaying damage, in fact looks like it should just buff off with MAAS
Then once you start taking it off you find the pits underneath..this is why it is called Devil's spit because it is devious
This stuff is odd. I worked on it with 220 grit for over a half hour on one spot and the black never went away. It's pretty disheartening, but there's still no pitting evident.

Now I did have some that was like that on a wedge. I took off the smooth blackness and it was full of pits underneath. At least the blade is thick enough for me to not hurt it by smoothing it out.