Looking for some rust chemicals

[Dzichader]

Hi!

I am living in Sofia for 3 years and finally got time to do something with rust.
I want make my fender in Rost style so i am looking for chemical that would secure the rust. Can't find here Cortanin F I used in Poland, but found this:
https://www.emag.bg/inhibitor-na-ryzhda ... DPXQ2KMBM/
https://icolor.bg/inhibitor-na-rajda-i- ... vatrol-oil
I don't know if I am translating this good, so I ask for your help :)

[Dzichader]

Nevermind, bought based on indigents.

[IvakaPetrov]

What did you buy and can you give some feedback after you use it?