Treating and painting this small concrete wall, need some advice

[Blodsallad]

Hello! I have a section of concrete wall with paint that has been neglected over the years and needs new paint. Would these 2 products I bought at Biltema work well?

https://www.biltema.se/bygg/farg/utomhusfarg/mur--och-putsgrund-2000021455

https://www.biltema.se/bygg/farg/utomhusfarg/mur--och-putsfarg-3-l-2000050165

The wall section currently looks like this all the way around:



I bought a wire brush and tried to remove as much paint as possible, it was super difficult, it sticks quite hard. Can I remove as much of the old paint as possible and then just go ahead with the new outdoor paint I bought at Biltema?

 

[anders07]

Buy a metal disc for the angle grinder, or for the drill, and use it for grinding. Wear a face mask and goggles, as well as thick gloves!

The products will work well!

 

[Blodsallad]

Buy a metal wheel for the angle grinder, or for the drill, and use it for sanding. Wear a face mask and goggles, as well as thick gloves!

The products will work well!

Ah.. Good idea. I'm going to buy a steel wheel, it should be much easier to remove the paint. There are certain areas that I physically can't reach with it though, is it okay to just paint over those spots?

 

[anders07]

Ah.. Good idea. I'll go and buy a wire wheel, it should be much easier to remove the paint. There are certain surfaces where I physically can't reach with it though, is it okay to just paint over those areas then?

Yes, the main thing is to remove everything loose and "roughen up" what is stuck.