Hi, i'm hoping for some advise on caring for my blades.
I have a new mirrored Hart Steel 7/8 razor . After and during every shave water marks apear in patches and little spots. A touch of Maas and little effort removes them.
I also have a dovo blade that i use Maas on, to polish it and after every shave it develops some staining that takes alot of effort to remove.

Is it the Mass metal polish that is doing this to my blades?

Am i doing some thing wrong .
I appreciate any help.. mant thanks