would steer clear of the colours other than black or grey

they come ready mixed and bagged, and the flock is much shorter and gives a different finish, doesnt feel or look as nice as the standard issue black

black is simple as it comes, and then the grey is made at central by mixing the black with white flock, and as u add more white, it goes more and more towards a slate style bluey grey rather than a straight grey

this is all just info iv picked up along the way by having issues with the flocking process, so if im wrong in any way, feel free to correct