Why not use graffiti paint?
You can buy it in art shops and that big craft shop chain I can’t remember the name of now.
Also online.
https://www.graff-city.com/
Did you not google this first? 😂
Basically buy the paint and the cap (nozzle) size you want if the standard one isn’t ok.
There’s lots of video comparing the cap and spray pattern types on YouTube.
The one I used most is MTN94 paint like this https://www.graff-city.com/spray-cans-c128/spray-paint-cans-c76/mtn-spray-paint-c89/mtn-94-spray-paint-p11
Graffiti paint is amazing. Is so cheap compared to other sprays but it sticks to anything and the spray quality is amazing – you would expect artists to need a controllable consistent spray and that’s what you get with them.
I have been told by my local art shop that sells it that the graffiti paint makers barely make any money on sprays of any at all as they do it just to provide the artists with what they need at the lowest price.
