Ok, the clear coat products I'm using did not call for a reducer only clear coat at 4 parts and activator at 1 part. Unless when you say reducer your referring to the activator. I've painted a few bikes with modest success but am not a pro. Sounds like you are n. I need all of the help I can get.
I don't have any 600 but I do have 800, 1500, 2000, will that do?