slip 2000 cleaner degreaser problem

I just cleaned my glock with S2k c/d and the back of my sight and screw on my 10-8 sight is showing rapid aging.

The gun is clean but the rear sight looks ancient.

I’m not sure how the 10-8 sight is finished but the S2k c/d appears to be stripping it.

Anyone else have similar experiences?

I use it sometimes when oil seeps onto the outside of my guns, never had a problem. I’ve been wondering if it has a high pH like the carbon killer (which does work pretty well on carbon and degreases) and what the difference is between CK and 725. High pH is bad for bare aluminum.

Thanks, I just got an e-mail from S2K last night and the rep would like to see pictures I imagine.