Depends on what type of paint it is. I used to use xylene based industrial paint for a particular job and for a silk or matt finish the supplier just added a percentage of a flattening agent to the gloss at mixing stage.
For small jobs using rattle cans from the motor factors i have succesfully used colour with a matt laquer over the top to get a flatter finish.
You could maybe try a small test piece first to check for finish or reaction.
Edited By Alan Waddington 2 on 08/12/2018 06:30:34