Clean brass rails
We have installed in our house on two floors almost 30 steps with carpet and fixed with brass rails.
Once a year I treated her with Sidol metal polish.
My husband, who promised to coat the rails with a varnish, did not get the turn. Over the years, the procedure did not help, and I had to watch helplessly how ugly the rails were.
Now I got to know the plaster and treat it with stainless steel things. I now apply it to the brass rails as well and lo and behold, it works.
For this I want to upload a picture, but I do not know how it works.