Best rattlecan paint for bikes?

tl;dr

please can someone tell me a tough/high quality finish matte black.

and which primer I should use,if any.

Will be respraying a frame, will be leaving old paint on and thoroughly sanding as prep before primer. What do i use to wipe it down after sanding? (they use it on wheeler dealers but cannae remember what it's called)

Montana or plastikotes are super tough but use there primers underneath for maximum adhesion.

Sand it down to 600 then wipe with a (tag rag), halfords sell them in packs of 3 cheaply then prime and paint